Passster < 4.2.26 - Global Protection Bypass
Priority MEDIUM 63CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
The Passster WordPress plugin before 4.2.26 has a flaw in its global protection checks, allowing unauthenticated users to bypass the protection offered via crafted URLs
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0035 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Passster (Unknown): 4.2.26
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 |
|---|---|---|---|---|---|
| Unknown | Passster | before 4.2.26 | 4.2.26 | Patch available | CNA |
- Passster VendorUnknown Affected before 4.2.26 Fixed in 4.2.26 Patch available CNA
Remediation
- Fix · CNA Passster (Unknown) Fixed in 4.2.26
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15490
- 2026-10-03 Alias added: GHSA-r64m-vg32-6jh4
References
Sources
- CVE-2025-15490 · CVE Program
- CVE-2025-15490 · NVD
- FIRST EPSS
- GHSA-r64m-vg32-6jh4 · 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