CVE-2013-2107: Cross-site request forgery (CSRF) vulnerability in the Mail On Update plugin before 5.2.0 for WordPress allows

Q: How do I fix CVE-2013-2107?

mail on update: upgrade to newer than 5.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2013-2107 being exploited?

CVE-2013-2107 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2013-2107 affect?

CVE-2013-2107 affects mail on update. Severity is medium (CVSS 6.8). Cross-site request forgery (CSRF) vulnerability in the Mail On Update plugin before 5.2.0 for WordPress allows remote attackers to hijack the authentication of administrators for requests that change the "List of alternative recipients" via

Q: How urgent is CVE-2013-2107?

Priority 51/100. Public exploit reference

This month

MEDIUM 6.8UPGRADE

CVE-2013-2107 is a medium-severity flaw (CVSS 6.8) affecting mail on update. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site request forgery (CSRF) vulnerability in the Mail On Update plugin before 5.2.0 for WordPress allows remote attackers to hijack the authentication of administrators for requests that change the "List of alternative recipients" via the mailonupdate_mailto parameter in the mail-on-update page to wp-admin/options-general.php. NOTE: a third party claims that 5.2.1 and 5.2.2 are also vulnerable, but the issue might require a separate CVE id

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-352
Published	2014-05-23
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: mail on update project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-05-23 00:55 UTCPublished CVE record published
2026-06-16 23:52 UTCUpdated Record last modified

mail on update project mail on update UPGRADE

Affected: <= 5.1.0 · 5.0.0

Fixed in: newer than 5.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mail-on-update || rpm -q mail-on-update || mail-on-update --version

2. UPGRADE to newer than 5.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mail-on-update

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mail-on-update

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: WordPress Plugin Mail On Update - Cross-Site Request Forgery

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-2107?

mail on update: upgrade to newer than 5.1.0. Exact commands for each OS are on this page.

Is CVE-2013-2107 being exploited?

CVE-2013-2107 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-2107 affect?

CVE-2013-2107 affects mail on update. Severity is medium (CVSS 6.8). Cross-site request forgery (CSRF) vulnerability in the Mail On Update plugin before 5.2.0 for WordPress allows remote attackers to hijack the authentication of administrators for requests that change the "List of alternative recipients" via

How urgent is CVE-2013-2107?

Priority 51/100. Public exploit reference

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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