Cross-site scripting in ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Ultimate Blocks – WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple widgets in all versions up to, and including, 3.3.3 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ultimateblocks | Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor | up to 3.3.3 | — | No fix listed | CNA |
- Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor Vendorultimateblocks Affected up to 3.3.3 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dotcamp:ultimate_blocks:*:*:*:*:*:wordpress:*:* | before 3.3.4 | Vulnerable | ultimateblocks |
- cpe:2.3:a:dotcamp:ultimate_blocks:*:*:*:*:*:wordpress:*:* Versions before 3.3.4 Vulnerable ·ultimateblocks
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2918
- 2026-10-03 Alias added: GHSA-7wrh-jx7h-gpfr
References
Other 4
- https://plugins.trac.wordpress.org/browser/ultimate-blocks/tags/3.2.9/src/blocks/how-to/block.php#L335
- https://plugins.trac.wordpress.org/browser/ultimate-blocks/tags/3.2.9/src/blocks/content-filter/block.php#L14
- https://plugins.trac.wordpress.org/browser/ultimate-blocks/tags/3.2.9/src/blocks/tabbed-content/block.php#L136
- https://plugins.trac.wordpress.org/browser/ultimate-blocks/tags/3.2.9/src/blocks/content-toggle/block.php#L133
More ultimateblocks Ultimate Blocks vulnerabilities
- TI-2024-04331 Ultimate Blocks < 3.1.9 - Contributor+ Stored XSS CVSS 3.1MEDIUM 6.3
- TI-2024-09896 Ultimate Blocks < 3.2.4 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-07913 Ultimate Blocks < 3.2.2 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-05904 Ultimate Blocks < 3.2.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 4.6
- TI-2024-03973 Cross-site scripting in ultimateblocks Ultimate Blocks – 25+ Gutenberg Blocks for Block… CVSS 3.1MEDIUM 6.4
- TI-2024-24961 WordPress Ultimate Blocks – WordPress Blocks Plugin plugin <= 3.1.9 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-2918 · CVE Program
- CVE-2025-2918 · NVD
- FIRST EPSS
- GHSA-7wrh-jx7h-gpfr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences