CVE-2021-47924

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.

Ultimate Product Catalogue 5.8.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the price parameter. Attackers can submit POST requests to post.php with HTML/JavaScript payloads in the price field to execute arbitrary code when the product is viewed.

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
21%
KEV
Not listed

Published

May 10, 2026

Last Modified

July 25, 2026

Advisory Details (4)

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

WordPress Plugin Ultimate Product Catalog 5.8.2 Stored XSS via price | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wordpress-plugin-ultimate-product-catalog-stored-xss-via-price
generic🟡 PoC Available

Exploit Database - Exploits for Penetration Testers, Researchers, and Ethical Hackers

https://www.exploit-db.com/exploits/50534
generic

Best WordPress Plugins - Etoile Web Design

https://www.etoilewebdesign.com
generic

Ultimate Product Catalog – WordPress plugin | WordPress.org

https://wordpress.org/plugins/ultimate-product-catalogue/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 28× 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 228 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. 2026-08-26 14:43 UTCEPSS rescore
  17. 2026-08-25 13:46 UTCEPSS rescore
  18. 2026-08-24 14:13 UTCEPSS rescore
  19. 2026-08-23 18:47 UTCEG score recompute
  20. 2026-08-23 18:47 UTCGHSA enrichment
  21. 2026-08-21 23:46 UTCEPSS rescore
  22. 2026-08-20 22:52 UTCEPSS rescore
  23. 2026-08-19 17:01 UTCEPSS rescore
  24. 2026-08-18 13:45 UTCEPSS rescore
  25. 2026-08-17 13:44 UTCEPSS rescore
Show 75 more
  1. 2026-08-17 11:21 UTCEG score recompute
  2. 2026-08-17 11:21 UTCGHSA enrichment
  3. 2026-08-16 14:53 UTCEPSS rescore
  4. 2026-08-16 04:29 UTCEG score recompute
  5. 2026-08-16 04:29 UTCGHSA enrichment
  6. 2026-08-16 02:11 UTCEPSS rescore
  7. 2026-08-15 01:27 UTCEPSS rescore
  8. 2026-08-14 03:04 UTCEG score recompute
  9. 2026-08-14 03:04 UTCGHSA enrichment
  10. 2026-08-13 21:57 UTCEPSS rescore
  11. 2026-08-12 16:39 UTCEG score recompute
  12. 2026-08-12 16:39 UTCGHSA enrichment
  13. 2026-08-12 13:48 UTCEPSS rescore
  14. 2026-08-11 13:38 UTCEPSS rescore
  15. 2026-08-11 02:50 UTCEG score recompute
  16. 2026-08-11 02:50 UTCGHSA enrichment
  17. 2026-08-10 02:34 UTCEG score recompute
  18. 2026-08-10 02:34 UTCGHSA enrichment
  19. 2026-08-09 13:44 UTCEPSS rescore
  20. 2026-08-09 02:19 UTCEG score recompute
  21. 2026-08-09 02:19 UTCGHSA enrichment
  22. 2026-08-08 16:34 UTCEPSS rescore
  23. 2026-08-08 01:55 UTCEG score recompute
  24. 2026-08-08 01:55 UTCGHSA enrichment
  25. 2026-08-07 16:24 UTCEPSS rescore
  26. 2026-08-07 01:40 UTCEG score recompute
  27. 2026-08-07 01:40 UTCGHSA enrichment
  28. 2026-08-06 13:44 UTCEPSS rescore
  29. 2026-08-05 22:02 UTCEG score recompute
  30. 2026-08-05 22:02 UTCGHSA enrichment
  31. 2026-08-05 19:15 UTCEPSS rescore
  32. 2026-08-04 15:06 UTCEPSS rescore
  33. 2026-08-04 10:34 UTCEPSS rescore
  34. 2026-08-04 03:15 UTCEG score recompute
  35. 2026-08-04 03:15 UTCGHSA enrichment
  36. 2026-08-03 10:33 UTCEPSS rescore
  37. 2026-08-03 02:51 UTCGHSA enrichment
  38. 2026-08-02 02:30 UTCEG score recompute
  39. 2026-08-02 02:30 UTCGHSA enrichment
  40. 2026-08-02 02:24 UTCEPSS rescore
  41. 2026-08-01 04:13 UTCEPSS rescore
  42. 2026-07-30 16:25 UTCEPSS rescore
  43. 2026-07-30 01:28 UTCEPSS rescore
  44. 2026-07-28 15:33 UTCEPSS rescore
  45. 2026-07-26 14:52 UTCEPSS rescore
  46. 2026-07-26 08:24 UTCEG score recompute
  47. 2026-07-26 08:24 UTCGHSA enrichment
  48. 2026-07-25 14:15 UTCEPSS rescore
  49. 2026-07-24 14:15 UTCEPSS rescore
  50. 2026-07-24 14:15 UTCEPSS rescore
  51. 2026-07-23 14:16 UTCEPSS rescore
  52. 2026-07-23 02:06 UTCEG score recompute
  53. 2026-07-22 22:53 UTCEG score recompute
  54. 2026-07-22 14:06 UTCEPSS rescore
  55. 2026-07-21 15:22 UTCEPSS rescore
  56. 2026-07-21 15:22 UTCEPSS rescore
  57. 2026-07-20 17:05 UTCEPSS rescore
  58. 2026-07-19 14:29 UTCEPSS rescore
  59. 2026-07-19 02:27 UTCEPSS rescore
  60. 2026-07-19 02:27 UTCEPSS rescore
  61. 2026-07-18 10:02 UTCEPSS rescore
  62. 2026-07-16 17:00 UTCEPSS rescore
  63. 2026-07-16 17:00 UTCEPSS rescore
  64. 2026-07-15 16:55 UTCEPSS rescore
  65. 2026-07-15 01:58 UTCEPSS rescore
  66. 2026-07-15 01:58 UTCEPSS rescore
  67. 2026-07-13 22:27 UTCEPSS rescore
  68. 2026-07-13 06:11 UTCEPSS rescore
  69. 2026-07-13 06:11 UTCEPSS rescore
  70. 2026-07-12 05:44 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-2021-47924?
CVE-2021-47924 is a medium vulnerability published on May 10, 2026. Ultimate Product Catalogue 5.8.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the price parameter. Attackers can submit POST requests to post.php with HTML/JavaScript payloads in the price field to execute arbitrary…
When was CVE-2021-47924 disclosed?
CVE-2021-47924 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-2021-47924 actively exploited?
CVE-2021-47924 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 79.3% of all scored CVEs.
What is the CVSS score of CVE-2021-47924?
CVE-2021-47924 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2021-47924?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47924, 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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