How severe is CVE-2026-47344?

CVE-2026-47344 has a CVSS 4.0 base score of 2.1, rated low severity.

Is CVE-2026-47344 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-47344?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-47344 have an EU (EUVD) identifier?

Yes. CVE-2026-47344 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35191.

When was CVE-2026-47344 published?

CVE-2026-47344 was published on 2026-06-08 and last updated on 2026-06-17.

CVE-2026-47344

CVE-2026-47344 is a low-severity vulnerability with a CVSS 4.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 4.0 base score 2.1)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35191
Weakness: CWE-79
Published: 2026-06-08
Last modified: 2026-06-17

Description

When ALLOW_INSECURE_RAW_TEXT is enabled, whitespace-variant closing tags (e.g., </style\t>) are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2.

Frequently asked questions

What is CVE-2026-47344?: When ALLOW_INSECURE_RAW_TEXT is enabled, whitespace-variant closing tags (e.g., </style\t>) are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2.
How severe is CVE-2026-47344?: CVE-2026-47344 has a CVSS 4.0 base score of 2.1, rated low severity.
Is CVE-2026-47344 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-47344?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-47344 have an EU (EUVD) identifier?: Yes. CVE-2026-47344 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35191.
When was CVE-2026-47344 published?: CVE-2026-47344 was published on 2026-06-08 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
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CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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