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Fencer Intel
medium 5.3

CVE-2020-25768 json

Contao Insert tag injection in forms

published 6y ago modified 4mo ago also GHSA-f7wm-x4gw-6m23 , EUVD-2020-1014

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

Patch / fix

  • packagist contao/core-bundle 4.4.52, 4.9.6, 4.10.1
  • packagist contao/contao 4.4.52, 4.9.6, 4.10.1
  • contao contao 4.4.52, 4.9.6, 4.10.1

Is CVE-2020-25768 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist contao/core-bundle
>=4.0.0, <4.4.52
>=4.5.0, <4.9.6
>=4.10.0, <4.10.1
4.4.52
4.9.6
4.10.1
packagist contao/contao
>=4.0.0, <4.4.52
>=4.5.0, <4.9.6
>=4.10.0, <4.10.1
4.4.52
4.9.6
4.10.1

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Sources

Fencer Intel 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.