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Vulnerabilities

Vulnerability · CVE-2019-9554

In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.

Published Dec 31, 2019 · catalog updated Jun 17, 2026 · craft cms

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2019-9554. EPSS is 3.71%. Act only if a listed version of craft cms is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.71%
Remediation
Advisory link
Affected products
cpe craftcms/craft cms

In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe craftcms/craft cms3.1.12

How to fix CVE-2019-9554

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2019-9554. EPSS is 3.71%. Act only if a listed version of craft cms is installed.

Which versions are affected?

Compare what you have installed with craftcms/craft cms 3.1.12. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 3.71%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Craft CMS security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 31, 2019 · Monitored products — high

    Detected

    In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.

Sources

  • CVE.orgVulnerability recordCVE-2019-9554

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2019-9554

    In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttps://packetstormsecurity.com/files/151944/Craft-CMS-3.1.12-Pro-Cross-Site-Scripting.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Packet Storm SecurityNov 5, 2026
  • CVE.orgNov 4, 2026
  • Monitored products — highNov 4, 2026