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Fencer Vulns
critical 9.8

CVE-2021-33816 json

Dolibarr remote PHP code execution

published 2021-11-10 4 y ago modified 2026-06-17 4 mo ago also BIT-dolibarr-2021-33816 , EUVD-2022-5459 , GHSA-vxr9-p2xw-m8cf

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The website builder module in Dolibarr 13.0.2 allows remote PHP code execution because of an incomplete protection mechanism in which system, exec, and shell_exec are blocked but backticks are not blocked.

Patch / fix

  • packagist dolibarr/dolibarr 14.0.0

Exploit prediction

3.94% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • trovent.io https://trovent.io/security-advisory-2106-01 referenced PoC, tagged "exploit" by a source, unverified
  • trovent.github.io https://trovent.github.io/security-advisories/TRSA-2106-01/TRSA-2106-01.txt referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2021/Nov/39 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist dolibarr/dolibarr
>=13.0.2, <14.0.0
14.0.0
bitnami dolibarr
>=13.0.2, <=13.0.2
 no fix listed

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.