CVE-2020-37255

HIGH 7.5

WordPress Time Capsule Plugin 1.21.16 Authentication Bypass

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-288
Vendor	wptimecapsule
Product	time capsule plugin
Published	Jun 20, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Wptimecapsule / Time Capsule Plugin

0 < 1.21.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/47941 wptimecapsule.com: https://wptimecapsule.com/ vulncheck.com: https://www.vulncheck.com/advisories/wordpress-time-capsule-plugin-authentication-bypass

Credits

B. Canavate