CVE-2006-0800

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.

Interpretation conflict in PostNuke 0.761 and earlier allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character, which is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in (1) the pnVarCleanFromInput function in pnAPI.php, (2) the pnSecureInput function in pnAntiCracker.php, and (3) the htmltext parameter in an edituser operation to user.php.

CVSS v3
—
EG Score
0.0(none)
EPSS
79.8%
KEV
Not listed

Published

February 20, 2006

Last Modified

April 16, 2026

References (14)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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. 2026-07-13 22:25 UTCEPSS rescore
  2. 2026-07-13 06:07 UTCEPSS rescore
  3. 2026-07-13 06:07 UTCEPSS rescore
  4. 2026-07-11 08:22 UTCEPSS rescore
  5. 2026-07-09 19:03 UTCEPSS rescore
  6. 2026-07-08 15:09 UTCEPSS rescore
  7. 2026-07-04 06:26 UTCEPSS rescore
  8. 2026-07-02 14:00 UTCEPSS rescore
  9. 2026-07-01 15:01 UTCEPSS rescore
  10. 2026-06-27 03:04 UTCEPSS rescore
  11. 2026-06-25 13:46 UTCEPSS rescore
  12. 2026-06-24 14:01 UTCEPSS rescore
  13. 2026-06-24 14:01 UTCEPSS rescore
  14. 2026-06-23 21:29 UTCEPSS rescore
  15. 2026-06-23 21:29 UTCEPSS rescore
  16. 2026-06-21 01:56 UTCEPSS rescore
  17. 2026-06-19 19:22 UTCEPSS rescore
  18. 2026-06-19 19:22 UTCEPSS rescore
  19. 2026-06-18 17:49 UTCEPSS rescore
  20. 2026-06-18 17:49 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-17 17:49 UTCEPSS rescore
  23. 2026-06-16 17:49 UTCEPSS rescore
  24. 2026-06-16 17:49 UTCEPSS rescore
  25. 2026-06-15 17:44 UTCEPSS rescore
Show 41 more
  1. 2026-06-14 23:13 UTCEPSS rescore
  2. 2026-06-13 22:56 UTCEPSS rescore
  3. 2026-06-12 23:08 UTCEPSS rescore
  4. 2026-06-11 13:55 UTCEPSS rescore
  5. 2026-06-10 22:14 UTCEPSS rescore
  6. 2026-06-10 13:17 UTCEPSS rescore
  7. 2026-06-07 15:21 UTCEPSS rescore
  8. 2026-06-06 13:44 UTCEPSS rescore
  9. 2026-06-06 13:44 UTCEPSS rescore
  10. 2026-06-05 22:43 UTCEPSS rescore
  11. 2026-06-05 06:07 UTCEPSS rescore
  12. 2026-06-05 06:07 UTCEPSS rescore
  13. 2026-06-04 13:09 UTCEPSS rescore
  14. 2026-06-04 13:09 UTCEPSS rescore
  15. 2026-06-02 20:10 UTCEPSS rescore
  16. 2026-06-02 20:10 UTCEPSS rescore
  17. 2026-06-01 13:49 UTCEPSS rescore
  18. 2026-06-01 13:49 UTCEPSS rescore
  19. 2026-06-01 13:49 UTCEPSS rescore
  20. 2026-05-31 22:28 UTCEPSS rescore
  21. 2026-05-31 09:57 UTCEG score recompute
  22. 2026-05-31 09:57 UTCGHSA enrichment
  23. 2026-05-31 00:13 UTCEPSS rescore
  24. 2026-05-31 00:13 UTCEPSS rescore
  25. 2026-05-31 00:13 UTCEPSS rescore
  26. 2026-05-29 13:40 UTCEPSS rescore
  27. 2026-05-28 13:42 UTCEPSS rescore
  28. 2026-05-28 13:42 UTCEPSS rescore
  29. 2026-05-27 13:37 UTCEPSS rescore
  30. 2026-05-27 13:37 UTCEPSS rescore
  31. 2026-05-26 13:41 UTCEPSS rescore
  32. 2026-05-26 13:41 UTCEPSS rescore
  33. 2026-05-24 16:42 UTCEPSS rescore
  34. 2026-05-22 21:15 UTCEPSS rescore
  35. 2026-05-22 21:15 UTCEPSS rescore
  36. 2026-05-21 22:38 UTCEPSS rescore
  37. 2026-05-20 22:36 UTCEPSS rescore
  38. 2026-05-20 22:36 UTCEPSS rescore
  39. 2026-05-20 11:20 UTCEPSS rescore
  40. 2026-05-20 11:20 UTCEPSS rescore
  41. 2026-05-18 21:29 UTCEPSS rescore

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-27254✓ verified
    First seen Feb 21, 2006

    PostNuke 0.6x/0.7x NS-Languages Module - 'language' Cross-Site Scripting

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2006-0800?
CVE-2006-0800 is a none vulnerability published on February 20, 2006. Interpretation conflict in PostNuke 0.761 and earlier allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML tags with a trailing "<" character, which is interpreted as a ">" character by some web browsers but bypasses the blacklist protection in (1) the pnVarCleanFromInput…
When was CVE-2006-0800 disclosed?
CVE-2006-0800 was first published in the National Vulnerability Database on February 20, 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-2006-0800 actively exploited?
CVE-2006-0800 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2006-0800?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-0800, 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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