CVE-2008-5503

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

A fix is available — apply it.

The loadBindingDocument function in Mozilla Firefox 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 does not perform any security checks related to the same-domain policy, which allows remote attackers to read or access data from other domains via crafted XBL bindings.

CVSS v3
—
EG Score
0.0(none)
EPSS
71.6%
KEV
Not listed

Published

December 17, 2008

Last Modified

April 23, 2026

References (72)

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntufirefox (1.5.dfsg+1.5.0.15~prepatch080614i-0ubuntu1) @ dapper2026-05-30ubuntu
ubuntufirefox (2.0.0.19+nobinonly1-0ubuntu0.7.10.1) @ gutsy2026-05-30ubuntu
ubuntuthunderbird (2.0.0.19+nobinonly-0ubuntu0.8.10.1) @ intrepid2026-05-30ubuntu
ubuntumozilla-thunderbird (1.5.0.13+1.5.0.15~prepatch080614i-0ubuntu0.6.06.1) @ dapper2026-05-30ubuntu
redhatthunderbird-0:2.0.0.19-1.el5_22009-01-07redhat
redhatseamonkey-0:1.0.9-32.el42008-12-17redhat

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

(6)

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 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
  3. 2026-07-06 02:19 UTCEPSS rescore
  4. 2026-07-05 02:26 UTCEPSS rescore
  5. 2026-07-05 02:26 UTCEPSS rescore
  6. 2026-07-04 06:27 UTCEPSS rescore
  7. 2026-07-02 14:00 UTCEPSS rescore
  8. 2026-07-01 15:02 UTCEPSS rescore
  9. 2026-07-01 15:02 UTCEPSS rescore
  10. 2026-06-30 23:19 UTCEPSS rescore
  11. 2026-06-28 14:03 UTCEPSS rescore
  12. 2026-06-28 04:52 UTCEPSS rescore
  13. 2026-06-27 03:04 UTCEPSS rescore
  14. 2026-06-25 13:46 UTCEPSS rescore
  15. 2026-06-25 13:46 UTCEPSS rescore
  16. 2026-06-24 14:02 UTCEPSS rescore
  17. 2026-06-24 14:02 UTCEPSS rescore
  18. 2026-06-23 21:29 UTCEPSS rescore
  19. 2026-06-23 21:29 UTCEPSS rescore
  20. 2026-06-22 14:22 UTCEPSS rescore
  21. 2026-06-22 14:22 UTCEPSS rescore
  22. 2026-06-21 14:53 UTCEPSS rescore
  23. 2026-06-21 14:53 UTCEPSS rescore
  24. 2026-06-21 01:56 UTCEPSS rescore
  25. 2026-06-21 01:56 UTCEPSS rescore
Show 53 more
  1. 2026-06-19 19:22 UTCEPSS rescore
  2. 2026-06-19 19:22 UTCEPSS rescore
  3. 2026-06-18 17:49 UTCEPSS rescore
  4. 2026-06-18 17:49 UTCEPSS rescore
  5. 2026-06-17 17:49 UTCEPSS rescore
  6. 2026-06-17 17:49 UTCEPSS rescore
  7. 2026-06-16 17:49 UTCEPSS rescore
  8. 2026-06-16 17:49 UTCEPSS rescore
  9. 2026-06-15 17:44 UTCEPSS rescore
  10. 2026-06-14 23:13 UTCEPSS rescore
  11. 2026-06-13 22:57 UTCEPSS rescore
  12. 2026-06-12 23:08 UTCEPSS rescore
  13. 2026-06-12 23:08 UTCEPSS rescore
  14. 2026-06-11 13:56 UTCEPSS rescore
  15. 2026-06-10 22:14 UTCEPSS rescore
  16. 2026-06-10 13:17 UTCEPSS rescore
  17. 2026-06-08 14:13 UTCEPSS rescore
  18. 2026-06-07 15:22 UTCEPSS rescore
  19. 2026-06-06 13:44 UTCEPSS rescore
  20. 2026-06-06 13:44 UTCEPSS rescore
  21. 2026-06-05 22:44 UTCEPSS rescore
  22. 2026-06-05 22:44 UTCEPSS rescore
  23. 2026-06-05 06:07 UTCEPSS rescore
  24. 2026-06-04 13:09 UTCEPSS rescore
  25. 2026-06-04 13:09 UTCEPSS rescore
  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-06-02 20:10 UTCEPSS rescore
  28. 2026-06-01 13:49 UTCEPSS rescore
  29. 2026-06-01 13:49 UTCEPSS rescore
  30. 2026-06-01 13:49 UTCEPSS rescore
  31. 2026-05-31 22:28 UTCEPSS rescore
  32. 2026-05-31 22:28 UTCEPSS rescore
  33. 2026-05-31 00:13 UTCEPSS rescore
  34. 2026-05-31 00:13 UTCEPSS rescore
  35. 2026-05-30 19:02 UTCEG score recompute
  36. 2026-05-30 19:02 UTCVendor advisory
  37. 2026-05-30 19:02 UTCGHSA enrichment
  38. 2026-05-29 13:40 UTCEPSS rescore
  39. 2026-05-28 13:42 UTCEPSS rescore
  40. 2026-05-28 13:42 UTCEPSS rescore
  41. 2026-05-28 13:42 UTCEPSS rescore
  42. 2026-05-27 13:38 UTCEPSS rescore
  43. 2026-05-27 13:37 UTCEPSS rescore
  44. 2026-05-26 13:41 UTCEPSS rescore
  45. 2026-05-26 13:41 UTCEPSS rescore
  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. 2026-05-20 22:37 UTCEPSS rescore
  50. 2026-05-20 22:36 UTCEPSS rescore
  51. 2026-05-20 11:20 UTCEPSS rescore
  52. 2026-05-20 11:20 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same vendor)

Frequently asked(4)

What is CVE-2008-5503?
CVE-2008-5503 is a none vulnerability published on December 17, 2008. The loadBindingDocument function in Mozilla Firefox 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 does not perform any security checks related to the same-domain policy, which allows remote attackers to read or access data from other domains via crafted XBL…
When was CVE-2008-5503 disclosed?
CVE-2008-5503 was first published in the National Vulnerability Database on December 17, 2008, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2008-5503 actively exploited?
CVE-2008-5503 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2008-5503?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2008-5503, 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-2008-5503

Explore →

Is Your Infrastructure Affected by CVE-2008-5503?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs