EUVD-2026-44985Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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
Reflected XSS reachable remotely without attacker privileges but requiring admin victim interaction (UI:R); script escapes into the browser authority (S:C) with limited confidentiality/integrity impact and no availability effect.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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
Lifecycle Timeline
2DescriptionCVE.org
Emlog is an open source website building system. In 2.6.13 and earlier, the admin backend user search module's keyword parameter from admin/user.php is processed with addslashes but not HTML-escaped before being rendered into the value attribute in admin/views/user.php, allowing reflected cross-site scripting in an administrator's backend session. No fixed version is currently identified.
AnalysisAI
Reflected cross-site scripting in Emlog 2.6.13 and earlier lets a remote attacker execute arbitrary JavaScript in an authenticated administrator's backend session by luring the admin to open a crafted link that hits the user-search feature in admin/user.php. The keyword parameter is sanitized with addslashes but never HTML-escaped before it is echoed into a value attribute in admin/views/user.php, so injected markup breaks out of the attribute and runs in the admin's browser. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires (1) a victim who is an authenticated Emlog administrator with an active backend session, and (2) that victim to actively open an attacker-crafted link targeting the keyword parameter of admin/user.php (UI:A/required in the CVSS vector) - the attacker themselves needs no account (PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N) scores 8.5, treating browser-side compromise of admin functionality as high confidentiality/integrity impact; however this is a reflected XSS that hinges on social-engineering an administrator into clicking a crafted URL (UI:A/required), which materially lowers real-world exploitability versus a no-interaction flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a URL to the target Emlog site's admin/user.php with a malicious payload in the keyword search parameter and, via phishing or a planted link, gets a logged-in administrator to open it. The reflected payload breaks out of the value attribute and executes JavaScript in the admin's authenticated session, letting the attacker steal the session/CSRF token or issue backend actions (e.g., create an admin account, modify content) as that administrator. … |
| Remediation | No vendor-released patch identified at time of analysis, so no fixed version can be cited; monitor the vendor advisory at https://github.com/emlog/emlog/security/advisories/GHSA-3h87-c3m2-jpj9 for an official fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, restrict administrative access to trusted IP addresses using firewall rules and limit access to the user-search feature in admin/user.php to essential personnel. …
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External POC / Exploit Code
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