What is CVE-2020-37255?

CVE-2020-37255 is a high-severity vulnerability in Wptimecapsule Time Capsule Plugin, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-06-20.

How severe is CVE-2020-37255?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Wptimecapsule Time Capsule Plugin

CVE-2020-37255

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 expl…

EPSS: 0.006 (46.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Wptimecapsule Time Capsule Plugin — versions 0

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

ExploitDB-47941 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: WordPress Time Capsule Plugin 1.21.16 Authentication Bypass (third-party-advisory)

Frequently asked questions

What is CVE-2020-37255?: CVE-2020-37255 is a high-severity vulnerability in Wptimecapsule Time Capsule Plugin, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-06-20.
How severe is CVE-2020-37255?: High severity. CVSS v3 base score is 7.5 out of 10.