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Fencer Vulns
low 3.7

CVE-2020-11063 json

Observable Response Discrepancy in TYPO3 CMS

published 2020-05-13 6 y ago modified 2026-09-10 1 mo ago also BIT-typo3-2020-11063 , EUVD-2020-0405 , GHSA-347x-877p-hcwx

cvss
3.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

In TYPO3 CMS versions 10.4.0 and 10.4.1, it has been discovered that time-based attacks can be used with the password reset functionality for backend users. This allows an attacker to mount user enumeration based on email addresses assigned to backend user accounts. This has been fixed in 10.4.2.

Patch / fix

  • packagist typo3/cms-core 10.4.2
  • packagist typo3/cms 10.4.2

Exploit prediction

1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
GitHub 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
OSV 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist typo3/cms-core
>=10.0.0, <10.4.2
10.4.2
packagist typo3/cms
>=10.0.0, <10.4.2
10.4.2
bitnami typo3
>=10.4.0, <=10.4.0
>=10.4.1, <=10.4.1
no fix listed

Affected products

  • TYPO3 TYPO3 CMS

Classification

Weakness
  • CWE-204 Observable Response Discrepancy
  • CWE-203 Observable Discrepancy

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.