eskapism Simple History Plugin up to 5.26.0 on WordPress Reaction Endpoint react_to_event password recovery

Summaryinfo

A vulnerability marked as problematic has been reported in eskapism Simple History Plugin up to 5.26.0 on WordPress. Impacted is the function react_to_event of the component Reaction Endpoint. The manipulation leads to password recovery. This vulnerability is uniquely identified as CVE-2026-7459. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in eskapism Simple History Plugin up to 5.26.0 on WordPress. This issue affects the function react_to_event of the component Reaction Endpoint. The manipulation with an unknown input leads to a password recovery vulnerability. Using CWE to declare the problem leads to CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Simple History – Track, Log, and Audit WordPress Changes plugin for WordPress is vulnerable to authenticated (Subscriber+) account takeover in all versions up to, and including, 5.26.0 via the event reaction endpoints (react_to_event() / unreact_to_event()). The endpoints register get_items_permissions_check() as their permission_callback, which only verifies the requester is logged in and does not enforce the per-logger capability checks normally applied by Log_Query. As a result, a Subscriber-level user can POST to /wp-json/simple-history/v1/events//react with the _fields=context query parameter and read the full context of any Simple History event — including SimpleUserLogger entries that record the full password-reset email body (reset URL with the reset key) for any user. The attacker triggers a password reset for an administrator via the lost-password form, brute-forces recent event IDs through the reaction endpoint to read the resulting user_requested_password_reset_link event, extracts the reset key from context.message, and completes the password reset to take over the administrator account. Exploitation requires an administrator to have first enabled the experimental features option (simple_history_experimental_features_enabled), which is not the default.

The weakness was disclosed by Ly Hoang. It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2026-7459 since 04/29/2026. The exploitation is known to be difficult. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

Upgrading to version 5.26.0 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• eskapism

Name

• Simple History Plugin

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14
• 5.15
• 5.16
• 5.17
• 5.18
• 5.19
• 5.20
• 5.21
• 5.22
• 5.23
• 5.24
• 5.25
• 5.26.0

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Exploitinginfo

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Entryinfo

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