Exploitation Summary
EIP tracks 1 public exploit for CVE-2025-25062. PoCs published by rhburt. A Nuclei detection template is also available.
AI-analyzed exploit summary This PoC exploits a stored XSS vulnerability in Backdrop CMS 1.29.2, chaining it with CSRF to escalate privileges from 'Editor' to 'Administrator'. The script automates the creation of a malicious post containing obfuscated JavaScript that triggers privilege escalation when an admin views it.
Description
An XSS issue was discovered in Backdrop CMS 1.28.x before 1.28.5 and 1.29.x before 1.29.3. It doesn't sufficiently isolate long text content when the CKEditor 5 rich text editor is used. This allows a potential attacker to craft specialized HTML and JavaScript that may be executed when an administrator attempts to edit a piece of content. This vulnerability is mitigated by the fact that an attacker must have the ability to create long text content (such as through the node or comment forms) and an administrator must edit (not view) the content that contains the malicious content. This problem only exists when using the CKEditor 5 module.
Exploits (1)
This PoC exploits a stored XSS vulnerability in Backdrop CMS 1.29.2, chaining it with CSRF to escalate privileges from 'Editor' to 'Administrator'. The script automates the creation of a malicious post containing obfuscated JavaScript that triggers privilege escalation when an admin views it.
Nuclei Templates (1)
Backdrop CMS
References (3)
Scores
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N