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TI-2026-84154 Aliases CVE-2026-104647GHSA-cgqh-wvf2-gj9c

Incorrect authorization in weMail WordPress plugin lets editors act as admins

Priority LOW 17CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-863.

Summary

The weMail WordPress plugin through 2.1.6 does not correctly verify user capabilities in its REST API permission checks (CWE-863, Incorrect Authorization). Any user whose role is on the plugin's allowed-roles list, Editor and above by default, is treated as authorized for every action. An authenticated attacker with an Editor or higher role can perform administrator-level actions, such as listing all registered users with their email addresses and changing the plugin's own access-control settings. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

The weMail WordPress plugin through 2.1.6 does not correctly verify user capabilities in its REST API permission checks, treating any user whose role is in the weMail WordPress plugin through 2.1.6's allowed-roles list (Editor and above by default) as authorised for every action, which allows such users to perform administrator-level actions including enumerating all registered users with their email addresses and modifying the weMail WordPress plugin through 2.1.6's own access-control configuration.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00152 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownweMailup to 2.1.6—No fix listedCNA
  • weMail VendorUnknown Affected up to 2.1.6 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for weMail, so no vendor fix is known from the facts provided.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-104647
  2. 2026-11-03 Alias added: GHSA-cgqh-wvf2-gj9c
  3. 2026-11-04 CVSS score added · CISA ADP
  4. 2026-11-04 Weakness changed · CISA ADP
  5. 2026-11-04 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences