CVE-2014-5241

MEDIUMCVSS v2 · 6.86.8—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.8 — v2 rates that MEDIUM (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:M/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 0.8% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS v2: 6.8Exploit: None knownExposed: 0

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

The JSONP endpoint in includes/api/ApiFormatJson.php in MediaWiki before 1.19.18, 1.20.x through 1.22.x before 1.22.9, and 1.23.x before 1.23.2 accepts certain long callback values and does not restrict the initial bytes of a JSONP response, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks, and obtain sensitive information, via a crafted OBJECT element with SWF content consistent with a restricted character set.

CVSS v2.0 (legacy)
6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.8(low)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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 computed
Severity68% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

August 22, 2014

Last Modified

May 6, 2026

References (14)

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
mediawiki—1:1.19.18+dfsg-0.1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
mediawiki—1:1.19.18+dfsg-0.1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
mediawiki—1:1.19.18+dfsg-0.1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
mediawiki—1:1.19.18+dfsg-0.1—
Debian:7(1)
PackageVulnerable rangeFixed inDependents
mediawiki1:1.19.10+dfsg-1 ... 1:1.19.9+dfsg-2 (25 versions)1:1.19.18+dfsg-0+deb7u1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 2× in last 7d / 18× 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.

Showing the most recent 100 of 145 total refreshes for this CVE.

  1. 2026-09-20 20:08 UTCEPSS rescore
  2. 2026-09-18 19:21 UTCEPSS rescore
  3. 2026-09-17 19:21 UTCEPSS rescore
  4. 2026-09-17 19:21 UTCEPSS rescore
  5. 2026-09-15 03:04 UTCEPSS rescore
  6. 2026-09-13 16:41 UTCEPSS rescore
  7. 2026-09-12 14:55 UTCEPSS rescore
  8. 2026-09-11 09:31 UTCEPSS rescore
  9. 2026-09-10 11:53 UTCOSV refresh
  10. 2026-09-07 15:56 UTCEPSS rescore
  11. 2026-09-06 13:42 UTCEPSS rescore
  12. 2026-09-05 15:23 UTCEPSS rescore
  13. 2026-09-04 13:55 UTCEPSS rescore
  14. 2026-09-02 14:07 UTCEPSS rescore
  15. 2026-09-01 13:48 UTCEPSS rescore
  16. 2026-08-30 19:12 UTCEPSS rescore
  17. 2026-08-28 21:34 UTCEPSS rescore
  18. 2026-08-27 14:20 UTCEPSS rescore
  19. 2026-08-26 14:41 UTCEPSS rescore
  20. 2026-08-25 13:44 UTCEPSS rescore
  21. 2026-08-23 07:41 UTCOSV refresh
  22. 2026-08-21 23:44 UTCEPSS rescore
  23. 2026-08-20 22:50 UTCEPSS rescore
  24. 2026-08-19 16:59 UTCEPSS rescore
  25. 2026-08-18 13:43 UTCEPSS rescore
Show 75 more
  1. 2026-08-16 14:51 UTCEPSS rescore
  2. 2026-08-16 02:09 UTCEPSS rescore
  3. 2026-08-15 01:25 UTCEPSS rescore
  4. 2026-08-12 13:46 UTCEPSS rescore
  5. 2026-08-09 13:42 UTCEPSS rescore
  6. 2026-08-08 16:31 UTCEPSS rescore
  7. 2026-08-07 16:21 UTCEPSS rescore
  8. 2026-08-07 10:57 UTCOSV refresh
  9. 2026-08-06 13:42 UTCEPSS rescore
  10. 2026-08-05 19:12 UTCEPSS rescore
  11. 2026-08-04 15:04 UTCEPSS rescore
  12. 2026-08-02 02:22 UTCEPSS rescore
  13. 2026-08-01 04:11 UTCEPSS rescore
  14. 2026-07-30 16:23 UTCEPSS rescore
  15. 2026-07-30 01:26 UTCEPSS rescore
  16. 2026-07-28 15:31 UTCEPSS rescore
  17. 2026-07-26 14:50 UTCEPSS rescore
  18. 2026-07-26 13:51 UTCEG score recompute▲ 6.80
  19. 2026-07-24 14:13 UTCEPSS rescore
  20. 2026-07-23 14:14 UTCEPSS rescore
  21. 2026-07-23 01:13 UTCEG score recompute
  22. 2026-07-23 00:17 UTCEG score recompute
  23. 2026-07-22 21:55 UTCEG score recompute
  24. 2026-07-22 14:04 UTCEPSS rescore
  25. 2026-07-22 03:48 UTCOSV refresh
  26. 2026-07-21 15:21 UTCEPSS rescore
  27. 2026-07-21 15:21 UTCEPSS rescore
  28. 2026-07-20 17:03 UTCEPSS rescore
  29. 2026-07-19 14:27 UTCEPSS rescore
  30. 2026-07-19 02:26 UTCEPSS rescore
  31. 2026-07-19 02:26 UTCEPSS rescore
  32. 2026-07-18 10:00 UTCEPSS rescore
  33. 2026-07-16 16:59 UTCEPSS rescore
  34. 2026-07-15 16:54 UTCEPSS rescore
  35. 2026-07-15 16:54 UTCEPSS rescore
  36. 2026-07-15 01:56 UTCEPSS rescore
  37. 2026-07-13 22:26 UTCEPSS rescore
  38. 2026-07-13 06:08 UTCEPSS rescore
  39. 2026-07-12 05:42 UTCEPSS rescore
  40. 2026-07-12 05:42 UTCEPSS rescore
  41. 2026-07-11 08:23 UTCEPSS rescore
  42. 2026-07-09 19:05 UTCEPSS rescore
  43. 2026-07-08 15:10 UTCEPSS rescore
  44. 2026-07-07 13:42 UTCEPSS rescore
  45. 2026-07-06 16:24 UTCEPSS rescore
  46. 2026-07-06 02:20 UTCEPSS rescore
  47. 2026-07-05 02:26 UTCEPSS rescore
  48. 2026-07-04 22:26 UTCOSV refresh
  49. 2026-07-04 06:27 UTCEPSS rescore
  50. 2026-07-01 15:02 UTCEPSS rescore
  51. 2026-07-01 15:02 UTCEPSS rescore
  52. 2026-06-30 23:19 UTCEPSS rescore
  53. 2026-06-30 23:19 UTCEPSS rescore
  54. 2026-06-28 14:03 UTCEPSS rescore
  55. 2026-06-28 04:53 UTCEPSS rescore
  56. 2026-06-28 04:53 UTCEPSS rescore
  57. 2026-06-27 03:05 UTCEPSS rescore
  58. 2026-06-25 13:47 UTCEPSS rescore
  59. 2026-06-25 13:47 UTCEPSS rescore
  60. 2026-06-24 14:02 UTCEPSS rescore
  61. 2026-06-24 14:02 UTCEPSS rescore
  62. 2026-06-23 21:30 UTCEPSS rescore
  63. 2026-06-23 21:30 UTCEPSS rescore
  64. 2026-06-22 14:22 UTCEPSS rescore
  65. 2026-06-22 14:22 UTCEPSS rescore
  66. 2026-06-21 14:54 UTCEPSS rescore
  67. 2026-06-21 01:57 UTCEPSS rescore
  68. 2026-06-19 19:23 UTCEPSS rescore
  69. 2026-06-18 17:49 UTCEPSS rescore
  70. 2026-06-18 17:49 UTCEPSS rescore
  71. 2026-06-17 17:49 UTCEPSS rescore
  72. 2026-06-17 17:49 UTCEPSS rescore
  73. 2026-06-16 17:50 UTCEPSS rescore
  74. 2026-06-16 17:49 UTCEPSS rescore
  75. 2026-06-16 17:49 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2014-5241?
CVE-2014-5241 is a medium vulnerability published on August 22, 2014. The JSONP endpoint in includes/api/ApiFormatJson.php in MediaWiki before 1.19.18, 1.20.x through 1.22.x before 1.22.9, and 1.23.x before 1.23.2 accepts certain long callback values and does not restrict the initial bytes of a JSONP response, which allows remote attackers to conduct cross-site…
When was CVE-2014-5241 disclosed?
CVE-2014-5241 was first published in the National Vulnerability Database on August 22, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-5241 actively exploited?
CVE-2014-5241 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 44.1% of all scored CVEs.
How do I remediate CVE-2014-5241?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-5241, 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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