Loading vulnerability…
CVE-2025-25062 is a stored cross-site scripting vulnerability in Backdrop CMS affecting 1.28.x before 1.28.5 and 1.29.x before 1.29.3 when the CKEditor 5 module is in use. The issue is caused by insufficient isolation of long text content processed through CKEditor 5. An attacker who can create long text content, such as via node or comment forms, can craft malicious HTML and JavaScript that is stored in the application. The payload is not triggered on normal viewing according to the provided information; instead, it executes when an administrator attempts to edit the affected content.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for CVE-2025-25062, a privilege escalation vulnerability in Backdrop CMS 1.29.2. The exploit leverages a stored XSS vulnerability in the post edit page, chaining it with a CSRF attack to escalate an 'Editor' user's privileges to 'Administrator' when an admin visits the malicious post. The main script, 'CVE-2025-25062.py', is a Python tool that automates the attack: it logs in as an 'Editor', crafts and posts a payload containing a base64-encoded JavaScript XSS, and outputs a URL. When an admin visits this URL, the JavaScript executes in their browser, sending forged requests to escalate the attacker's privileges. The repository is structured with a main exploit script, a README with usage and background, a requirements file, and standard project files. The exploit is operational and demonstrates a real privilege escalation scenario in a vulnerable Backdrop CMS instance.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.