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VulnerabilityPublished

CVE-2026-14834: Mailgun for WordPress · Improper Access Control

Affects Mailgun for WordPressSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium : upgrade to 2.2.1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.2.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Mailgun for WordPress to 2.2.1.

Affected software

ProductAffectedFixed in
Mailgun for WordPressAffected
  • <2.2.1
Fixed in
  • 2.2.1

AI-suggested

If you cannot patch yet, site owners should consider disabling the vulnerable AJAX action or restricting access to it via other means. Monitoring for unusual subscription activity may help detect exploitation attempts.

Description

Mailgun for WordPress versions prior to 2.2.1 contain an improper access control vulnerability. The plugin fails to perform capability or nonce checks on an unauthenticated AJAX action that adds subscribers to mailing lists. This allows unauthenticated attackers to add arbitrary email addresses to the site owner's configured mailing lists using the owner's stored API credentials.

References

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