CVE-2021-26929

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \\x00\\x00\\x00 and \\x01\\x01\\x01 interferes with XSS defenses."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-04-15T15:06:21.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/horde/webmail/releases"}, {"tags": ["x_refsource_MISC"], "url": "https://www.horde.org/apps/webmail"}, {"tags": ["x_refsource_MISC"], "url": "https://www.alexbirnberg.com/horde-xss.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://lists.horde.org/archives/announce/2021/001298.html"}, {"name": "[debian-lts-announce] 20210219 [SECURITY] [DLA 2564-1] php-horde-text-filter security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00028.html"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-26929", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \\x00\\x00\\x00 and \\x01\\x01\\x01 interferes with XSS defenses."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/horde/webmail/releases", "refsource": "MISC", "url": "https://github.com/horde/webmail/releases"}, {"name": "https://www.horde.org/apps/webmail", "refsource": "MISC", "url": "https://www.horde.org/apps/webmail"}, {"name": "https://www.alexbirnberg.com/horde-xss.html", "refsource": "MISC", "url": "https://www.alexbirnberg.com/horde-xss.html"}, {"name": "https://lists.horde.org/archives/announce/2021/001298.html", "refsource": "CONFIRM", "url": "https://lists.horde.org/archives/announce/2021/001298.html"}, {"name": "[debian-lts-announce] 20210219 [SECURITY] [DLA 2564-1] php-horde-text-filter security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00028.html"}, {"name": "http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html"}, {"name": "http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:33:41.620Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/horde/webmail/releases"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.horde.org/apps/webmail"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.alexbirnberg.com/horde-xss.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://lists.horde.org/archives/announce/2021/001298.html"}, {"name": "[debian-lts-announce] 20210219 [SECURITY] [DLA 2564-1] php-horde-text-filter security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00028.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-26929", "datePublished": "2021-02-14T03:43:49.000Z", "dateReserved": "2021-02-09T00:00:00.000Z", "dateUpdated": "2024-08-03T20:33:41.620Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:horde:groupware:*:*:*:*:webmail:*:*:*", "matchCriteriaId": "9B749CF0-3995-4FFF-BA34-35D7C889AD78", "versionEndIncluding": "5.2.22", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \\x00\\x00\\x00 and \\x01\\x01\\x01 interferes with XSS defenses."}, {"lang": "es", "value": "Se detect\u00f3 un problema de tipo XSS en Horde Groupware Webmail Edition versiones hasta 5.2.22 (donde es usada la biblioteca Horde_Text_Filter versiones anteriores a 2.3.7). El atacante puede enviar un mensaje de correo electr\u00f3nico de texto plano, con JavaScript codificado como un enlace o correo electr\u00f3nico que es manejado apropiadamente por la funci\u00f3n preProcess en el archivo Text2html.php, porque el uso personalizado de \\x00\\x00\\x00 y \\x01\\x01\\x01 interfiere con las defensas de XSS"}], "id": "CVE-2021-26929", "lastModified": "2026-06-17T03:44:01.673", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-02-14T04:15:12.777", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/horde/webmail/releases"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00028.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.horde.org/archives/announce/2021/001298.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.alexbirnberg.com/horde-xss.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.horde.org/apps/webmail"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/horde/webmail/releases"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00028.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.horde.org/archives/announce/2021/001298.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.alexbirnberg.com/horde-xss.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.horde.org/apps/webmail"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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