CVE-2020-8771 in the critical feed json
The Time Capsule plugin before 1.21.16 for WordPress has an authentication bypass.
published 2020-02-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-29619
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 45.5%
- EPSS 45.5% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The Time Capsule plugin before 1.21.16 for WordPress has an authentication bypass. Any request containing IWP_JSON_PREFIX causes the client to be logged in as the first account on the list of administrator accounts.
Patch / fix
- wptimecapsule wp_time_capsule 1.21.16
Exploit prediction
45.53% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template WordPress Time Capsule < 1.21.16 - Authentication Bypass nuclei detection template
- webarxsecurity.com https://www.webarxsecurity.com/vulnerability-infinitewp-client-wp-time-capsule/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-287 Improper Authentication
- Technology feeds
References
-
webarxsecurity.com
/vulnerability-infinitewp-client-wp-time-capsule/
exploit, third-party-advisory
-
wpvulndb.com
/vulnerabilities/10010
third-party-advisory
Sources
- CVE List CVE-2020-8771
- NVD CVE-2020-8771
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.