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CVE-2026-0686

25
FAUCET Score

CVE-2026-0686 identifies a Server-Side Request Forgery (SSRF) vulnerability within the Webmention plugin for WordPress, impacting all versions up to and including 5.6.2. This high-severity flaw (CVSS 7.2) allows unauthenticated attackers to make arbitrary web requests originating from the web application. The low-complexity attack requires no user interaction or privileges and could enable querying and modification of internal service information. There is currently no evidence of active exploitation, nor are public exploit codes or Metasploit modules available, with minimal community discussion noted.

Impacted Technologies

VendorProductVersion(s)CPE
PfefferleWebmention
>= 0, <= 5.6.2CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 5th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / pfefferle/wordpress-webmention/blob/057223cee18a9e93b017d0f21db6ea77a7686489/includes/handler/class-mf2.php
plugins.trac.wordpress.org / browser/webmention/tags/5.6.2/includes/class-receiver.php
plugins.trac.wordpress.org / browser/webmention/tags/5.6.2/includes/handler/class-mf2.php
plugins.trac.wordpress.org / changeset/3494831/webmention
wordfence.com / threat-intel/vulnerabilities/id/08d15c46-d15f-4803-80be-90bf33335c18