CVE-2024-0597Network attack vector

Stored XSS via unsanitized administrator settings

Published Feb 5, 2024 · Updated Apr 8, 2026

Stored XSS in Squirrly SEO 12.3.15 and earlier allows remote authenticated users to inject scripts through administrator settings. The affected settings path stores administrator-supplied values without sufficient sanitization and later renders them without output escaping. Administrator access is required, and the flaw is reachable only on multisite installations or where unfiltered_html is disabled; injected scripts run when a user opens an affected page.

CVSS severity4.4
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Squirrly SEO 12.3.15 and earlier allows remote authenticated users to inject scripts through administrator settings. The affected settings path stores administrator-supplied values without sufficient sanitization and later renders them without output escaping. Administrator access is required, and the flaw is reachable only on multisite installations or where unfiltered_html is disabled; injected scripts run when a user opens an affected page.

The record

CVE
CVE-2024-0597
Published
Feb 5, 2024
Updated
Apr 8, 2026
Vendor
Squirrly Limited
Product
Squirrly SEO
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=12.3.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Squirrly Limited · Squirrly SEOversion=0 <=12.3.15

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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