CVE-2026-57403

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-13. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Milan Petrovic GD Security Headers gd-security-headers allows Reflected XSS.This issue affects GD Security Headers: from n/a through <= 1.8.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 13, 2026

Advisory Details (1)

Auto-updated Jul 13, 2026
No patch confirmed yet.
generic

Cross Site Scripting (XSS) in WordPress GD Security Headers Plugin - Patchstack

https://patchstack.com/database/Wordpress/Plugin/gd-security-headers/vulnerability/wordpress-gd-security-headers-plugin-1-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-57403(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 112× 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 165 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57403?
CVE-2026-57403 is a high vulnerability published on July 13, 2026. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Milan Petrovic GD Security Headers gd-security-headers allows Reflected XSS.This issue affects GD Security Headers: from n/a through <= 1.8.
When was CVE-2026-57403 disclosed?
CVE-2026-57403 was first published in the National Vulnerability Database on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57403 actively exploited?
CVE-2026-57403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-57403?
CVE-2026-57403 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-57403?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57403, 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

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