PHP remote file inclusion vulnerability in functions/plugin.php in SquirrelMail 1.4.6 and earlier, if register_globals is enabled and magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary PHP code via a URL in the plugins array parameter. NOTE: this issue has been disputed by third parties, who state that Squirrelmail provides prominent warnings to the administrator when register_globals is enabled. Since the varieties of administrator negligence are uncountable, perhaps this type of issue should not be included in CVE. However, the original developer has posted a security advisory, so there might be relevant real-world environments under which this vulnerability is applicable
CVE-2006-2842
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 44.0% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Public exploit code is available (Exploit-DB (verified), epss top5pct, public exploit)
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.5(low)
- EG Risk
- 64(Track)EG Risk 64/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation65% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 47%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
June 6, 2006
Last Modified
April 16, 2026
References (40)
- cve@mitreftp://patches.sgi.com/support/free/security/advisories/20060703-01-U.asc
- cve@mitrehttp://docs.info.apple.com/article.html?artnum=306172
- cve@mitrehttp://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
- cve@mitrehttp://secunia.com/advisories/20406
- cve@mitrehttp://secunia.com/advisories/20931
- cve@mitrehttp://secunia.com/advisories/21159
- cve@mitrehttp://secunia.com/advisories/21262
- cve@mitrehttp://secunia.com/advisories/26235
- cve@mitrehttp://securitytracker.com/id?1016209
- cve@mitrehttp://squirrelmail.cvs.sourceforge.net/squirrelmail/squirrelmail/functions/global.php?r1=1.27.2.16&r2=1.27.2.17&view=patch&pathrev=SM-1_4-STABLE
- cve@mitrehttp://www.mandriva.com/security/advisories?name=MDKSA-2006:101
- cve@mitrehttp://www.novell.com/linux/security/advisories/2006_17_sr.html
- cve@mitrehttp://www.redhat.com/support/errata/RHSA-2006-0547.html
- cve@mitrehttp://www.securityfocus.com/archive/1/435605/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/18231
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | squirrelmail-0:1.4.6-7.el4 | 2006-07-03 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 3× in last 7d / 4× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-10 09:23 UTCEPSS rescore
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- 2026-07-26 13:29 UTCEG score recompute▲ 7.50
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- 2026-07-23 00:50 UTCEG score recompute
- 2026-07-23 00:30 UTCEG score recompute▼ 2.30
- 2026-07-22 23:54 UTCEG score recompute▲ 2.30
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- 2026-05-31 08:16 UTCEG score recompute
- 2026-05-31 08:16 UTCVendor advisory
- 2026-05-31 08:16 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(3 references)Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCkarthi-the-hacker/CVE-2006-2842First seen Dec 28, 2023
CVE-2006-2842 is a powerful scanner for bug bounty hunters and penetration testers to discover vulnerabilities in their web applications.
Open source ↗ - Exploit-DBEDB-27948✓ verifiedFirst seen Jun 2, 2006
Squirrelmail 1.4.x - 'Redirect.php' Local File Inclusion
Open source ↗ - Nucleihttp/cves/2006/CVE-2006-2842.yamlFirst seen Jan 1, 2006
Squirrelmail <=1.4.6 - Local File Inclusion
Open source ↗
Frequently asked(4)
What is CVE-2006-2842?
When was CVE-2006-2842 disclosed?
Is CVE-2006-2842 actively exploited?
How do I remediate CVE-2006-2842?
Dependency Blast Radius
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