EUVD-2026-77313
GHSA-5g6f-m8m2-v9cw
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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
Network-reachable low-complexity injection but requires a privileged publishing account (PR:H); code runs as the web-server process affecting the wider host, so scope-changed with full C/I/A impact.
Primary rating from Vendor (Joomla).
CVSS VectorVendor: Joomla
Lifecycle Timeline
3DescriptionCVE.org
Joomla Extension - regularlabs.com - Authenticated, privileged remote code execution in Conditional Content extension for Joomla < 8.0.0 - Conditional Content Pro accepts inline PHP Condition Rules in article syntax. In affected versions, the PHP is passed to the Conditions evaluator without checking who authored the article. Joomla's normal Author text filter preserves the syntax, so publishing the article causes the code to run as the web-server process.
Articles & Coverage 1
AnalysisAI
Remote code execution in Regular Labs' Conditional Content Pro extension for Joomla (versions before 8.0.0) lets an author with article-publishing rights embed inline PHP inside Condition Rules, which the extension hands to its Conditions evaluator without verifying who authored the content. Because Joomla's standard Author text filter preserves the rule syntax, publishing a crafted article executes the attacker's PHP as the web-server process. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires the Conditional Content Pro extension (not the free edition) installed on a Joomla site running a version below 8.0.0, and an authenticated account with sufficient privilege to author and publish articles (CVSS PR:H). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 9.4 is high but the vector (AV:N/AC:L/PR:H/UI:N) is the key nuance: exploitation is network-reachable and low-complexity, yet requires PR:H - a privileged, authenticated Joomla account able to author/publish articles containing Condition Rules. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Conditional Content Pro to version 8.0.0 or later, which the vendor indicates resolves the issue by no longer trusting inline PHP Condition Rules from non-privileged/unauthorized authors (Vendor-released patch: 8.0.0). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Joomla instances using Conditional Content Pro and determine which versions are deployed and how many users hold article-publishing rights. …
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External POC / Exploit Code
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