mainfile.php in XOOPS 2.0.13.2 and earlier, when register_globals is enabled, allows remote attackers to overwrite variables such as $xoopsOption['nocommon'] and conduct directory traversal attacks or include PHP files via (1) xoopsConfig[language] to misc.php or (2) xoopsConfig[theme_set] to index.php, as demonstrated by injecting PHP sequences into a log file.
CVE-2006-2516
NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 6%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 92.8%
- KEV
- Not listed
Published
May 22, 2006
Last Modified
April 16, 2026
References (14)
- cve@mitrehttp://secunia.com/advisories/20176
- cve@mitrehttp://securityreason.com/securityalert/934
- cve@mitrehttp://www.osvdb.org/25683
- cve@mitrehttp://www.securityfocus.com/archive/1/434698/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/18061
- cve@mitrehttp://www.vupen.com/english/advisories/2006/1895
- cve@mitrehttps://www.exploit-db.com/exploits/1811
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/20176
- af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/934
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/25683
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/434698/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/18061
- af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2006/1895
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/1811
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-1811✓ verifiedFirst seen May 21, 2006
XOOPS 2.0.13.2 - 'xoopsOption[nocommon]' Remote Command Execution
Open source ↗
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2006-2516?
CVE-2006-2516 is a none vulnerability published on May 22, 2006. mainfile.php in XOOPS 2.0.13.2 and earlier, when registerglobals is enabled, allows remote attackers to overwrite variables such as $xoopsOption['nocommon'] and conduct directory traversal attacks or include PHP files via (1) xoopsConfig[language] to misc.php or (2) xoopsConfig[themeset] to…
When was CVE-2006-2516 disclosed?
CVE-2006-2516 was first published in the National Vulnerability Database on May 22, 2006, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-2516 actively exploited?
CVE-2006-2516 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2006-2516?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-2516, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2006-2516
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