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OpenAdvisories
High · 7.5 CVE-2020-37255 EUVD-2020-31256GHSA-4jwp-2g8r-6m99

WordPress Time Capsule Plugin 1.21.16 Authentication Bypass

Published Jun 20, 2026 · Updated Jul 15, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
Wptimecapsule Time Capsule Plugin ≤ 1.21.16 —

References