CVE-2021-47951

MEDIUMNVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-05-10. NVD baseline CVSS 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: Elevated riskExposed: 0

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

WordPress Picture Gallery 1.4.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the Edit Content URL field in the Access Control settings. Attackers can enter JavaScript payloads in the plugin options that are stored in the database and executed when the functionality is triggered, enabling session hijacking or credential theft.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity64% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

May 10, 2026

Last Modified

July 25, 2026

Advisory Details (3)

Auto-updated May 10, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

WordPress Picture Gallery 1.4.2 Stored XSS via Edit Content URL | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wordpress-picture-gallery-stored-xss-via-edit-content-url
generic🟡 PoC Available

WordPress Plugin Picture Gallery 1.4.2 - 'Edit Content URL' Stored Cross-Site Scripting (XSS) - PHP webapps Exploit

https://www.exploit-db.com/exploits/50187
generic

Picture Gallery – Frontend Image Uploads, AJAX Photo List – WordPress plugin | WordPress.org

https://wordpress.org/plugins/picture-gallery/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 29× 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 227 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2021-47951?
CVE-2021-47951 is a medium vulnerability published on May 10, 2026. WordPress Picture Gallery 1.4.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the Edit Content URL field in the Access Control settings. Attackers can enter JavaScript payloads in the plugin options that are stored in…
When was CVE-2021-47951 disclosed?
CVE-2021-47951 was first published in the National Vulnerability Database on May 10, 2026, with the most recent update on July 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-47951 actively exploited?
CVE-2021-47951 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 91.5% of all scored CVEs.
What is the CVSS score of CVE-2021-47951?
CVE-2021-47951 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2021-47951?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47951, 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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