CVE-2026-13251Network attack vector

Unauthenticated file read via unchecked font path

Published Jul 2, 2026 · Updated Jul 2, 2026

Path traversal in Perfmatters 2.6.4 and earlier allows remote attackers to read arbitrary server files through the s parameter. The Local Google Fonts handler uses the s parameter in a file path without constraining the resolved target to the intended font directory. Exploitation requires the disabled-by-default Local Google Fonts feature, pretty permalinks, and enabled RSS feed links; readable data is limited by web-server permissions.

CVSS severity7.5
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Perfmatters 2.6.4 and earlier allows remote attackers to read arbitrary server files through the s parameter. The Local Google Fonts handler uses the s parameter in a file path without constraining the resolved target to the intended font directory. Exploitation requires the disabled-by-default Local Google Fonts feature, pretty permalinks, and enabled RSS feed links; readable data is limited by web-server permissions.

The record

CVE
CVE-2026-13251
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
forgemedia LLC
Product
Perfmatters
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

forgemedia LLC · Perfmattersversion=0 <=2.6.4

Published CVSS scores

7.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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