zhangyd-c OneBlog HTTP Header redos
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1333.
Summary
A vulnerability was found in zhangyd-c OneBlog up to 2.3.9. It has been classified as problematic. Affected is an unknown function of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-For leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| zhangyd-c | OneBlog | 2.3.0; 2.3.1; 2.3.2; 2.3.3; 2.3.4; 2.3.5; 2.3.6; 2.3.7; 2.3.8; 2.3.9 | — | No fix listed | CNA |
- OneBlog Vendorzhangyd-c Affected 2.3.0; 2.3.1; 2.3.2; 2.3.3; 2.3.4; 2.3.5; 2.3.6; 2.3.7; 2.3.8; 2.3.9 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2833
- 2026-10-03 Alias added: GHSA-5jpq-rg6x-9vcr
References
More Zhyd Oneblog vulnerabilities
- TI-2025-37659 zhangyd-c OneBlog v2.3.9 and before was vulnerable to SSTI (Server-Side Template Injection) via FreeMarker templates. CVSS 3.1CRITICAL 9.8
- TI-2025-35292 The /api/comment endpoint in zhangyd-c OneBlog 2.3.9 contains a denial-of-service vulnerability. CVSS 3.1HIGH 7.5
- TI-2024-36724 OneBlog v2.3.6 was discovered to contain a template injection vulnerability via the template management department. CVSS 3.1HIGH 8.0
- TI-2024-19462 A stored cross-site scripting (XSS) vulnerability in OneBlog v2.3.4 allows attackers to… CVSS 3.1MEDIUM 6.1
- TI-2024-19467 OneBlog v2.3.4 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 5.4
- TI-2024-19464 OneBlog v2.3.4 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the Notice Manage module. CVSS 3.1MEDIUM 5.4
Sources
- CVE-2025-2833 · CVE Program
- CVE-2025-2833 · NVD
- FIRST EPSS
- GHSA-5jpq-rg6x-9vcr · 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