CVE-2026-9756 json
GenerateBlocks <= 2.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute
published 4mo ago modified 4mo ago also EUVD-2026-41522
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
The GenerateBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Headline Block 'linkMetaFieldType' Dynamic Link Attribute in all versions up to, and including, 2.2.1 due to insufficient input sanitization and output escaping. 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. A contributor-level attacker can store a JavaScript payload in their own profile description (allowlisted by get_safe_user_meta_keys()) and prepend 'javascript:' via the linkMetaFieldType attribute, creating a fully attacker-controlled href that executes when any user, including an administrator, clicks the rendered headline link.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- edge22 GenerateBlocks
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/aac15273-0a5d-4107-8249-7fff7f503005?source=cve
- plugins.trac.wordpress.org /browser/generateblocks/tags/2.2.1/includes/blocks/class-headline.php#L809
- plugins.trac.wordpress.org /browser/generateblocks/tags/2.2.1/includes/class-dynamic-content.php#L816
- plugins.trac.wordpress.org /browser/generateblocks/tags/2.2.1/includes/class-dynamic-tag-security.php#L582
- plugins.trac.wordpress.org /browser/generateblocks/tags/2.2.0/includes/blocks/class-headline.php#L809
- plugins.trac.wordpress.org /browser/generateblocks/tags/2.2.0/includes/class-dynamic-content.php#L816
- plugins.trac.wordpress.org /browser/generateblocks/tags/2.2.0/includes/class-dynamic-tag-security.php#L582
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3582036%40generateblocks&new=3582036%40generateblocks&sfp_email
Sources
- CVE List CVE-2026-9756
- NVD CVE-2026-9756
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.