Meow Lightbox <= 5.6.4 - Unauthenticated Stored Cross-Site Scripting via HTML Parser Quote-Metadata Desynchronization
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- 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
The Meow Lightbox plugin for WordPress is affected by this vulnerability, which allows unauthenticated attackers to store malicious scripts that run in the browsers of anyone who views the affected page. Exploitation depends on specific non-default settings (Output Buffering, the HtmlDomParser engine, and Aggressive Resolve) and a submission surface such as bbPress anonymous replies.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
The Meow Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_content (bbPress reply body)' parameter in all versions up to, and including, 5.6.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the administrator to have enabled Output Buffering, the HtmlDomParser engine, and Aggressive Resolve, as well as a stored-HTML submission surface (such as bbPress anonymous replies) whose kses allow-list preserves img attributes; given these preconditions, a one-shot unauthenticated submission can execute arbitrary JavaScript in the context of any user who views the affected page.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- tigroumeow Meow Lightbox
through 5.6.4
References 8
plugins.trac.wordpress.org
- browser/meow-lightbox/tags/5.6.2/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L490
- browser/meow-lightbox/tags/5.6.2/vendor/kub-at/php-simple-html-dom-parser/src/KubAT/PhpSimple/lib/simple_html_dom.php#L2043
- browser/meow-lightbox/tags/5.6.2/classes/core.php#L1115
- browser/meow-lightbox/tags/5.6.2/classes/core.php#L1142
- browser/meow-lightbox/tags/5.6.2/classes/core.php#L1276
- browser/meow-lightbox/tags/5.6.2/classes/core.php#L901
- changeset?old_path=/meow-lightbox/tags/5.6.4&new_path=/meow-lightbox/tags/5.6.5