CVE-2026-3881 json
Performance Monitor <= 1.0.6 - Unauthenticated Blind SSRF
published 2026-03-31 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-17333
- cvss
- 5.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
The Performance Monitor WordPress plugin through 1.0.6 does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attacks
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/4b30421e-9848-45ce-87ab-0229d9d7df01/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N |
| CNA | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N |
Affected products
- Unknown Performance Monitor
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
- Technology feeds
References
-
wpscan.com
/vulnerability/4b30421e-9848-45ce-87ab-0229d9d7df01/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-3881
- NVD CVE-2026-3881
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.