Ultimate Addons for WPBakery Page Builder < 3.21.5 - Contributor+ Stored XSS via ult_buttons Shortcode
Priority MEDIUM 60CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Ultimate Addons for WPBakery Page Builder WordPress plugin before 3.21.5's shared link-rendering function, Ultimate_VC_Addons::uavc_link_init(),
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Ultimate Addons for WPBakery Page Builder (Unknown): 3.21.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| Unknown | Ultimate Addons for WPBakery Page Builder | before 3.21.5 | 3.21.5 | Patch available | CNA |
- Ultimate Addons for WPBakery Page Builder VendorUnknown Affected before 3.21.5 Fixed in 3.21.5 Patch available CNA
Remediation
- Fix · CNA Ultimate Addons for WPBakery Page Builder (Unknown) Fixed in 3.21.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14921
- 2026-10-03 Alias added: GHSA-5rjg-8878-gjp3
References
Sources
- CVE-2026-14921 · CVE Program
- CVE-2026-14921 · NVD
- FIRST EPSS
- GHSA-5rjg-8878-gjp3 · 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