Check & Log Email < 2.0.13 - Unauthenticated Stored XSS
Priority MEDIUM 58Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Check & Log Email WordPress plugin before 2.0.13 does not properly handle email replacement, which could allow unauthenticated users to perform Stored XSS attacks when the email encoder setting is enabled
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00155 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Check & Log Email (Unknown): 2.0.13
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 | Check & Log Email | before 2.0.13 | 2.0.13 | Patch available | CNA |
- Check & Log Email VendorUnknown Affected before 2.0.13 Fixed in 2.0.13 Patch available CNA
Remediation
- Fix · CNA Check & Log Email (Unknown) Fixed in 2.0.13
Timeline
- 2026-10-02 Threatist record created from CVE-2026-5306
- 2026-10-03 Alias added: GHSA-p8g5-jxr9-99q9
References
Sources
- CVE-2026-5306 · CVE Program
- CVE-2026-5306 · NVD
- FIRST EPSS
- GHSA-p8g5-jxr9-99q9 · GitHub Advisory Database · CC BY 4.0
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