CVE-2020-37255CWE-288

CVE-2020-37255

High · published June 20, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
49.5
In the wild
Unconfirmed
What it is

WordPress Time Capsule Plugin 1.21.16 contains an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by sending a crafted POST request with the IWP_JSON_PREFIX header. Attackers can exploit this flaw to obtain valid administrator session cookies and access the WordPress dashboard without providing credentials.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00629 · 49.5th percentile
Weakness
CWE-288 · Authentication Bypass Using an Alternate Path or Channel
Published
2026-06-20T18:16Z
References (3)
https://wptimecapsule.com/ · [email protected]https://www.exploit-db.com/exploits/47941 · [email protected]https://www.vulncheck.com/advisories/wordpress-time-capsule-plugin-authentication-bypass · [email protected]
EPSS history
Timeline
  • 20 JUN 13:36Z
    WordPress Time Capsule Plugin 1.21.16 Authentication Bypass
    cvelistv5