The Pressengine <= 1.0 - Unauthenticated Authentication Bypass
Priority MEDIUM 50CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
The Pressengine WordPress plugin through 1.0 does not stop its login handler from issuing a session when authentication fails, allowing unauthenticated attackers to log in as any user, including administrators.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00625 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 | The Pressengine | up to 1.0 | — | No fix listed | CNA |
- The Pressengine VendorUnknown Affected up to 1.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-86709
- 2026-10-03 Alias added: GHSA-r5f2-c2h7-4jxh
- 2026-10-31 EPSS moved to the 50th–90th percentile
- 2026-11-02 EPSS moved to the below the 50th percentile
- 2026-11-03 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2026-86709 · CVE Program
- CVE-2026-86709 · NVD
- FIRST EPSS
- GHSA-r5f2-c2h7-4jxh · 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