CVE-2026-73329

HIGH 8.7

CamaleonCMS Stored XSS via Draft Post Title Creation Endpoint

CVSS Score

8.7

EPSS Score

0.0%

EPSS Percentile

0th

CamaleonCMS contains a stored cross-site scripting vulnerability that allows authenticated low-privileged users to execute arbitrary JavaScript in an administrator's browser by injecting unsanitized HTML payloads into the post title parameter during draft creation. Attackers can submit a malicious HTML payload as a draft title through the drafts creation endpoint, which is persisted to the database without escaping and later rendered as raw HTML in the admin drafts listing, enabling administrator session compromise, cookie theft, and forged authenticated requests.

CWE	CWE-79
Vendor	owen2345
Product	camaleoncms
Published	Aug 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

owen2345 / CamaleonCMS

0 ≤ 2.9.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/owen2345/camaleon-cms enrik-m.github.io: https://enrik-m.github.io/posts/Camaleon-CMS-Vulnerabilties/#44-stored-xss-via-draft-post-title vulncheck.com: https://www.vulncheck.com/advisories/camaleoncms-stored-xss-via-draft-post-title-creation-endpoint

Credits

Amir Aliu & Enrik Mustafa