CVE-2012-4923

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 2%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Multiple cross-site scripting (XSS) vulnerabilities in Endian Firewall 2.4 allow remote attackers to inject arbitrary web script or HTML via the (1) createrule parameter to dnat.cgi, (2) addrule parameter to dansguardian.cgi, or (3) PATH_INFO to openvpn_users.cgi.

CVSS v3
—
EG Score
0.0(none)
EPSS
76.3%
KEV
Not listed

Published

September 15, 2012

Last Modified

April 29, 2026

References (8)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 42× 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.

  1. 2026-07-06 16:23 UTCEPSS rescore
  2. 2026-07-06 02:19 UTCEPSS rescore
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  10. 2026-06-28 14:03 UTCEPSS rescore
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  1. 2026-06-19 19:22 UTCEPSS rescore
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  11. 2026-06-13 22:57 UTCEPSS rescore
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  30. 2026-05-31 22:28 UTCEPSS rescore
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  32. 2026-05-31 00:14 UTCEPSS rescore
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  34. 2026-05-29 13:41 UTCEPSS rescore
  35. 2026-05-29 02:45 UTCEG score recompute
  36. 2026-05-29 02:45 UTCGHSA enrichment
  37. 2026-05-28 13:42 UTCEPSS rescore
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  39. 2026-05-27 13:38 UTCEPSS rescore
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  41. 2026-05-26 13:41 UTCEPSS rescore
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  43. 2026-05-26 07:16 UTCEPSS rescore
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  46. 2026-05-24 16:43 UTCEPSS rescore
  47. 2026-05-22 21:15 UTCEPSS rescore
  48. 2026-05-22 21:15 UTCEPSS rescore
  49. 2026-05-22 21:15 UTCEPSS rescore
  50. 2026-05-21 22:39 UTCEPSS rescore
  51. 2026-05-20 22:37 UTCEPSS rescore
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  57. 2026-05-18 21:29 UTCEPSS rescore
  58. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-36833✓ verified
    First seen Feb 27, 2012

    Endian Firewall 2.4 - 'dansguardian.cgi?addrule' Cross-Site Scripting

    Open source ↗
  • Exploit-DBEDB-36832✓ verified
    First seen Feb 27, 2012

    Endian Firewall 2.4 - 'dnat.cgi?createrule' Cross-Site Scripting

    Open source ↗
  • Exploit-DBEDB-36831✓ verified
    First seen Feb 27, 2012

    Endian Firewall 2.4 - 'openvpn_users.cgi?PATH_INFO' Cross-Site Scripting

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2012-4923?
CVE-2012-4923 is a none vulnerability published on September 15, 2012. Multiple cross-site scripting (XSS) vulnerabilities in Endian Firewall 2.4 allow remote attackers to inject arbitrary web script or HTML via the (1) createrule parameter to dnat.cgi, (2) addrule parameter to dansguardian.cgi, or (3) PATHINFO to openvpnusers.cgi.
When was CVE-2012-4923 disclosed?
CVE-2012-4923 was first published in the National Vulnerability Database on September 15, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-4923 actively exploited?
CVE-2012-4923 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2012-4923?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-4923, 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.

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