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Vulnerabilities

Vulnerability · CVE-2025-50018

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tealium Tealium tealium allows Stored XSS.This issue affects Tealium: from n/a

Published Jun 20, 2025 · catalog updated Apr 28, 2026 · Tealium Tealium

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-50018. EPSS is 0.26%. Act only if a listed version of Tealium Tealium is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Advisory link
Affected products
vendor Tealium Tealium 0 ≤2.1.20

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tealium Tealium tealium allows Stored XSS.This issue affects Tealium: from n/a through <= 2.1.20.

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.

  • vendor Tealium Tealium 0 ≤2.1.200 ≤2.1.20

How to fix CVE-2025-50018

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-2025-50018. EPSS is 0.26%. Act only if a listed version of Tealium Tealium is installed.

Which versions are affected?

Compare what you have installed with Tealium Tealium 0 ≤2.1.20 0 ≤2.1.20. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

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. Jun 20, 2025 · EUVD

    Detected

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tealium Tealium tealium allows Stored XSS.This issue affects Tealium: from n/a through <= 2.1.20.

  2. Apr 28, 2026 · EUVD

    Updated

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tealium Tealium tealium allows Stored XSS.This issue affects Tealium: from n/a through <= 2.1.20.

Sources

  • CVE.orgVulnerability recordCVE-2025-50018

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-50018

    30-day exploitation probability 0.26%

    first.org
  • EUVDVulnerability recordEUVD-2025-18931

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tealium Tealium tealium allows Stored XSS.This issue affects Tealium: from n/a through <= 2.1.20.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 18, 2026