Description
Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss() function (system/src/Grav/Common/Security.php). The event-handler scan is anchored at `<` and uses `[^>]*?`, which cannot cross the first literal `>`; when a `>` appears inside a quoted attribute value the browser keeps the tag open and parses a subsequent event handler (e.g. onerror), so the detector and browser disagree. A page editor without admin.super privileges can save page content such as `<img src=x title=">" onerror=alert(document.domain)>`, which is accepted, stored, and executed in the site origin when any visitor (including unauthenticated users) views the page. Fixed in 2.0.13.
Published: 2026-08-14
Score: 5.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Fri, 14 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
Description Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss() function (system/src/Grav/Common/Security.php). The event-handler scan is anchored at `<` and uses `[^>]*?`, which cannot cross the first literal `>`; when a `>` appears inside a quoted attribute value the browser keeps the tag open and parses a subsequent event handler (e.g. onerror), so the detector and browser disagree. A page editor without admin.super privileges can save page content such as `<img src=x title=">" onerror=alert(document.domain)>`, which is accepted, stored, and executed in the site origin when any visitor (including unauthenticated users) views the page. Fixed in 2.0.13.
Title Grav before 2.0.12 Stored XSS via quoted-attribute bypass
First Time appeared Getgrav
Getgrav grav
Weaknesses CWE-79
CPEs cpe:2.3:a:getgrav:grav:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:1.7.53.1:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:1.7.53.2:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:1.7.53:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.0:rc10:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.0:rc6:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.0:rc7:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.0:rc8:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.0:rc9:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:getgrav:grav:2.0.9:*:*:*:*:*:*:*
Vendors & Products Getgrav
Getgrav grav
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Subscriptions

Getgrav Grav
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-14T11:35:38.484Z

Reserved: 2026-08-10T15:13:41.486Z

Link: CVE-2026-72832

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-14T12:16:46.540

Modified: 2026-08-14T12:16:46.540

Link: CVE-2026-72832

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')