CVE-2026-77992
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2 - The onUpdateComment endpoint did not perform any access checks.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2 - The onUpdateComment endpoint did not perform any access checks.
- Record
CVE-2026-77992- CVSS 4.0
- 9.5 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Weakness
- CWE-94
- Updated
- 2026-11-02
EUVDEUVD-2026-64322
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2 - The onUpdateComment endpoint did not perform any access checks.
- Record
EUVD-2026-64322- CVSS 4.0
- 9.5 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gvj7-4928-2j6w
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7...
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2 - The onUpdateComment endpoint did not perform any access checks.
- Record
GHSA-gvj7-4928-2j6w- CVSS 4.0
- 9.5 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
Joomla Extension - fabrikar.com - heredoc terminator breakout in the calc element in Fabrik < 4.7.2 - The onUpdateComment endpoint did not perform any access checks.
- Record
CVE-2026-77992- CVSS 4.0
- 9.5 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-94
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-77992 is a critical vulnerability (CVSS 9.5) in Fabrikar.com Fabrik Extension For Joomla, published August 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. No source names a fixed version.