CVE-2024-3565
The Content Blocks (Custom Post Widget) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'content_block' shortcode in all versions up to, and including, 3.3.0 due to insufficient input sanitization and output escaping…
Does this matter?
Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.
Description
The Content Blocks (Custom Post Widget) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'content_block' shortcode in all versions up to, and including, 3.3.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- vanderwijk/content blocks
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/custom-post-widget/trunk/shortcode.php#L62Product
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3078739%40custom-post-widget&new=3078739%40custom-post-widget&sfp_email=&sfph_mail=#file6Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/16d8eab2-953a-46bf-a0f6-296bcea86305?source=cveThird Party Advisory
- https://plugins.trac.wordpress.org/browser/custom-post-widget/trunk/shortcode.php#L62Product
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3078739%40custom-post-widget&new=3078739%40custom-post-widget&sfp_email=&sfph_mail=#file6Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/16d8eab2-953a-46bf-a0f6-296bcea86305?source=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.