CVE-2021-24963

LiteSpeed Cache < 4.4.4 - Admin+ Reflected Cross-Site Scripting

View on CVE.org

Published Jan 3, 2022 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed

Description

The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Unknown

LiteSpeed Cache

affected

Version	Status	Constraints
`4.4.4`	affected	< 4.4.4

Configuration 1 [-]

cpe:2.3:a:litespeedtech:litespeed_cache:*:*:*:*:*:wordpress:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-11875	The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.676% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://plugins.trac.wordpress.org/changeset/2634373
https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b

History

No history.

Subscriptions

Litespeedtech Litespeed Cache

Weaknesses

CWE-79

Sources

CVE record Updated: Aug 3, 2024, 7:49 PM

Status: PUBLISHED
Assigner: WPScan
Published: Jan 3, 2022, 12:49 PM
Updated: Aug 3, 2024, 7:49 PM
Reserved: Jan 14, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:41 AM

Status: Modified
Published: Jan 3, 2022, 1:15 PM
Modified: Jun 17, 2026, 3:41 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "LiteSpeed Cache", "vendor": "Unknown", "versions": [{"lessThan": "4.4.4", "status": "affected", "version": "4.4.4", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Emil Kylander"}], "descriptions": [{"lang": "en", "value": "The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "CWE-79 Cross-site Scripting (XSS)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-01-03T12:49:07.000Z", "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://plugins.trac.wordpress.org/changeset/2634373"}], "source": {"discovery": "EXTERNAL"}, "title": "LiteSpeed Cache < 4.4.4 - Admin+ Reflected Cross-Site Scripting", "x_generator": "WPScan CVE Generator", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "contact@wpscan.com", "ID": "CVE-2021-24963", "STATE": "PUBLIC", "TITLE": "LiteSpeed Cache < 4.4.4 - Admin+ Reflected Cross-Site Scripting"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "LiteSpeed Cache", "version": {"version_data": [{"version_affected": "<", "version_name": "4.4.4", "version_value": "4.4.4"}]}}]}, "vendor_name": "Unknown"}]}}, "credit": [{"lang": "eng", "value": "Emil Kylander"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting"}]}, "generator": "WPScan CVE Generator", "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-79 Cross-site Scripting (XSS)"}]}]}, "references": {"reference_data": [{"name": "https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b", "refsource": "MISC", "url": "https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b"}, {"name": "https://plugins.trac.wordpress.org/changeset/2634373", "refsource": "CONFIRM", "url": "https://plugins.trac.wordpress.org/changeset/2634373"}]}, "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:49:14.342Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://plugins.trac.wordpress.org/changeset/2634373"}]}]}, "cveMetadata": {"assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "assignerShortName": "WPScan", "cveId": "CVE-2021-24963", "datePublished": "2022-01-03T12:49:07.000Z", "dateReserved": "2021-01-14T00:00:00.000Z", "dateUpdated": "2024-08-03T19:49:14.342Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "LiteSpeed Cache", "vendor": "Unknown", "versions": [{"lessThan": "4.4.4", "status": "affected", "version": "4.4.4", "versionType": "custom"}]}], "source": "contact@wpscan.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:litespeedtech:litespeed_cache:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "EF6F5FCC-681B-4B55-A96E-4E4B1141828F", "versionEndExcluding": "4.4.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting"}, {"lang": "es", "value": "El plugin LiteSpeed Cache de WordPress versiones anteriores a 4.4.4, no escapa el par\u00e1metro qc_res antes de devolverlo al c\u00f3digo JS de una p\u00e1gina de administraci\u00f3n, conllevando a un ataque de tipo Cross-Site Scripting Reflejado"}], "id": "CVE-2021-24963", "lastModified": "2026-06-17T03:41:12.377", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "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": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-01-03T13:15:08.457", "references": [{"source": "contact@wpscan.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://plugins.trac.wordpress.org/changeset/2634373"}, {"source": "contact@wpscan.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://plugins.trac.wordpress.org/changeset/2634373"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b"}], "sourceIdentifier": "contact@wpscan.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "contact@wpscan.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}