CVE-2026-33051 json
Craft CMS Vulnerable to Stored XSS in Revision Context Menu
published 2026-03-18 7 mo ago modified 2026-06-17 4 mo ago also GHSA-3x4w-mxpf-fhqq , EUVD-2026-13587
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
Craft CMS is a content management system (CMS). In versions 5.9.0-beta.1 through 5.9.10, the revision/draft context menu in the element editor renders the creator’s fullName as raw HTML due to the use of Template::raw() combined with Craft::t() string interpolation. A low-privileged control panel user (e.g., Author) can set their fullName to an XSS payload via the profile editor, then create an entry with two saves. If an administrator is logged in and executes a specifically crafted payload while an elevated session is active, the attacker’s account can be elevated to administrator. This issue has been fixed in version 5.9.11.
Patch / fix
- packagist craftcms/cms 5.9.11
- craftcms craft_cms 5.9.11
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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 |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | craftcms/cms | >=5.9.0-beta.1, <5.9.11 |
5.9.11 |
Affected products
- craftcms cms
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/craftcms/cms/commit/f634a9d21edcafd83a6716047d275f985aba6be1
web, patch
-
github.com
/craftcms/cms/security/advisories/GHSA-3x4w-mxpf-fhqq
web, patch, vendor-advisory
-
github.com
/craftcms/cms/releases/tag/5.9.11
web, product, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-33051
advisory
-
github.com
/craftcms/cms
package
Sources
- CVE List CVE-2026-33051
- GitHub Advisory GHSA-3x4w-mxpf-fhqq
- NVD CVE-2026-33051
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.