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Fencer Vulns
medium 4.7

CVE-2023-47125 json

By-passing Cross-Site Scripting Protection in HTML Sanitizer

published 2023-11-14 2 y ago modified 2026-09-10 1 mo ago also BIT-typo3-2023-47125 , EUVD-2023-3000 , GHSA-mm79-jhqm-9j54

cvss
4.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. This vulnerability has been addressed in versions 1.5.3 and 2.1.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Patch / fix

  • packagist typo3/html-sanitizer 1.5.3, 2.1.4
  • bitnami typo3 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8
  • typo3 html_sanitizer 1.5.3, 2.1.4
  • typo3 typo3 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 4.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
OSV 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist typo3/html-sanitizer
>=1.0.0, <1.5.3
>=2.0.0, <2.1.4
1.5.3
2.1.4
bitnami typo3
>=8.7.42, <8.7.55
>=9.5.29, <9.5.44
>=10.4.19, <10.4.41
>=11.3.2, <11.5.33
>=12.0.0, <12.4.8
8.7.55
9.5.44
10.4.41
11.5.33
12.4.8

Affected products

  • TYPO3 html-sanitizer

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.