Joinchat 6.3.2 - 6.4.1 - Author+ Stored XSS via Button Block Message Attribute
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.4.2
- 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
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
The Joinchat plugin for WordPress is affected, allowing users with Author-level access or higher to inject malicious scripts through the button block's message setting. Visitors who view the affected post, including administrators, could then have those scripts run in their browsers.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
The Joinchat WordPress plugin before 6.4.2 does not escape the message of its button block before outputting it in an HTML attribute on the front end, which could allow users with the Author role and above to perform Stored Cross-Site Scripting attacks against any visitor of the post, including administrators.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Unknown Joinchat
From 6.3.2 · fixed in 6.4.2