CVE-2026-105454

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A URL crafted to\n break out of the link's address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user's authority.\n\n\nThis issue was fixed in version\u00a05.0.11 and 6.0.4", "supportingMedia": [{"type": "text/html", "base64": false, "value": "RT's automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link's address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user's authority.<div><br></div><div>This issue was fixed in version&nbsp;5.0.11 and 6.0.4</div>"}]}], "tags": ["x_open-source"], "references": [{"url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454", "tags": ["third-party-advisory"]}, {"url": "https://requesttracker.com/request-tracker/", "tags": ["product"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"}}], "workarounds": [{"lang": "en", "value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content."}]}], "credits": [{"lang": "en", "value": "Mateusz Szymaniec (CERT.PL)", "type": "finder"}], "source": {"discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-105454", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-30T17:05:55.793778Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-30T17:18:21.963Z"}}]}}

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This disables\n automatic link creation for URLs in ticket content.", "supportingMedia": [{"type": "text/html", "value": "Set @Active_MakeClicky to an empty list in\n RT_SiteConfig.pm and restart the web server. This disables\n automatic link creation for URLs in ticket content.", "base64": false}]}], "x_generator": {"engine": "Vulnogram 1.0.3"}, "descriptions": [{"lang": "en", "value": "RT's automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link's address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user's authority.\n\n\nThis issue was fixed in version\u00a05.0.11 and 6.0.4", "supportingMedia": [{"type": "text/html", "value": "RT's automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link's address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user's authority.<div><br></div><div>This issue was fixed in version&nbsp;5.0.11 and 6.0.4</div>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.0.11", "versionStartIncluding": "5.0.0"}, {"criteria": "cpe:2.3:a:best_practical_solutions:request_tracker:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.0.4", "versionStartIncluding": "6.0.0"}], "operator": "OR"}], "operator": "OR"}], "providerMetadata": {"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "shortName": "CERT-PL", "dateUpdated": "2026-10-30T15:34:57.607Z"}}}, "cveMetadata": {"cveId": "CVE-2026-105454", "state": "PUBLISHED", "dateUpdated": "2026-10-30T17:18:21.963Z", "dateReserved": "2026-10-05T14:00:11.458Z", "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "datePublished": "2026-10-30T15:34:57.607Z", "assignerShortName": "CERT-PL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Request Tracker", "repo": "https://github.com/bestpractical/rtir", "vendor": "Best Practical Solutions", "versions": [{"lessThan": "5.0.11", "status": "affected", "version": "5.0.0", "versionType": "semver"}, {"lessThan": "6.0.4", "status": "affected", "version": "6.0.0", "versionType": "semver"}]}], "source": "cvd@cert.pl"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "RT's automatic link creation for URLs in HTML ticket content does\n not HTML-escape the URL it places in the link. A URL crafted to\n break out of the link's address can add a script that runs when the\n ticket history is displayed, with no further action by the viewer.\n Anyone who can add HTML content to a ticket can plant it. That\n includes an unauthenticated sender of HTML email to any queue that\n grants CreateTicket or ReplyToTicket to Everyone, which is routine\n for a queue that accepts mail from the public. The script runs in\n the session of any user who views the ticket, and can act in RT\n with that user's authority.\n\n\nThis issue was fixed in version\u00a05.0.11 and 6.0.4"}], "id": "CVE-2026-105454", "lastModified": "2026-10-30T19:37:07.073", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cvd@cert.pl", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-105454", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T17:05:55.793778Z", "version": "2.0.3"}}]}, "published": "2026-10-30T16:17:36.860", "references": [{"source": "cvd@cert.pl", "url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454"}, {"source": "cvd@cert.pl", "url": "https://requesttracker.com/request-tracker/"}], "sourceIdentifier": "cvd@cert.pl", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "cvd@cert.pl", "type": "Secondary"}]}

{"bugzilla": {"description": "rt: rt: Cross-site scripting via unescaped URLs in HTML ticket content", "id": "2564180", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2564180"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["RT's automatic link creation for URLs in HTML ticket content does\nnot HTML-escape the URL it places in the link. A URL crafted to\nbreak out of the link's address can add a script that runs when the\nticket history is displayed, with no further action by the viewer.\nAnyone who can add HTML content to a ticket can plant it. That\nincludes an unauthenticated sender of HTML email to any queue that\ngrants CreateTicket or ReplyToTicket to Everyone, which is routine\nfor a queue that accepts mail from the public. The script runs in\nthe session of any user who views the ticket, and can act in RT\nwith that user's authority.\nThis issue was fixed in version\u00a05.0.11 and 6.0.4", "A flaw was found in rt. The application fails to properly escape URLs when automatically generating hyperlinks in HTML ticket content. A remote, unauthenticated attacker can exploit this issue by submitting an email or ticket containing a specially crafted URL. When another user views the ticket history, the injected script executes automatically within their browser session, allowing the attacker to perform unauthorized actions with the victim's privileges."], "name": "CVE-2026-105454", "public_date": "2026-10-30T15:34:57Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-105454\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-105454\nhttps://cert.pl/en/posts/2026/10/CVE-2026-105454\nhttps://requesttracker.com/request-tracker/"], "statement": "This vulnerability has been rated as having a Moderate impact because, while unauthenticated remote actors can submit crafted payloads through incoming correspondence, exploitation requires user interaction to view ticket history and remains restricted to browser session execution rather than host compromise. Request Tracker is not packaged or supported as part of Red Hat Enterprise Linux offerings. In standalone deployments running this software, risk is primarily present when queues permit untrusted external users to create or update tickets.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.0.0,5.0.11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.0,6.0.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "inferred", "scores": [{"score": 100.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Request Tracker", "source": "cna", "vendor": "Best Practical Solutions"}, "product": "request_tracker", "vendor": "best_practical_solutions"}], "created": "2026-10-30T16:15:14.972093+00:00", "updated": "2026-10-30T17:45:14.543062+00:00", "vendors": ["best_practical_solutions", "best_practical_solutions$PRODUCT$request_tracker"]}