WPUpper Share Buttons <= 3.51 - Cross-Site Request Forgery to Custom CSS Update
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
The WPUpper Share Buttons plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.51. This is due to missing or incorrect nonce validation on the 'save_custom_css_request' function. This makes it possible for unauthenticated attackers to inject custom CSS to modify a site via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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 |
|---|---|---|---|---|---|
| victorfreitas | WPUpper Share Buttons | up to 3.51 | — | No fix listed | CNA |
- WPUpper Share Buttons Vendorvictorfreitas Affected up to 3.51 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:victorfreitas:wpupper_share_buttons:*:*:*:*:*:wordpress:*:* | up to 3.51 | Vulnerable | victorfreitas |
- cpe:2.3:a:victorfreitas:wpupper_share_buttons:*:*:*:*:*:wordpress:*:* Versions up to 3.51 Vulnerable ·victorfreitas
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-13883
- 2026-10-03 Alias added: GHSA-gxvc-5wrv-69rq
References
Sources
- CVE-2024-13883 · CVE Program
- CVE-2024-13883 · NVD
- FIRST EPSS
- GHSA-gxvc-5wrv-69rq · 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