REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.21.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
REDAXO, a PHP content management system, is affected through its backend packages API, where a crafted link can run malicious scripts in the browser of a logged-in administrator. An attacker could use this to perform actions on the site or read sensitive page data as that user.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
REDAXO before 5.21.0 contains a reflected cross-site scripting vulnerability in the backend packages API, where the function parameter is concatenated into an error message rendered without HTML escaping. Attackers can lure an authenticated backend user to a crafted link containing a valid CSRF token, executing JavaScript that performs same-origin actions or reads DOM data.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- redaxo core
fixed in 5.21.0
- redaxo/sourcePackagist
fixed in 5.21.0