CVE-2021-47981

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-05-16. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.4Exploit: NoneExposed: 0

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

Quick.CMS 6.7 contains a cross-site scripting vulnerability in the sliders form that allows authenticated attackers to inject malicious scripts by submitting XSS payloads through the sDescription parameter. Attackers can craft CSRF forms targeting the admin.php?p=sliders-form endpoint to execute arbitrary JavaScript in victim browsers when the form is submitted.

CVSS v3
5.4
EG Score
5.4(medium)
EPSS
7.5%
KEV
Not listed

Published

May 16, 2026

Last Modified

May 24, 2026

Advisory Details (3)

Auto-updated May 16, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Quick.CMS 6.7 Cross-Site Scripting via CSRF to Sliders Form | Advisories | VulnCheck

https://www.vulncheck.com/advisories/quick-cms-cross-site-scripting-via-csrf-to-sliders-form
generic🟡 PoC Available

Quick.CMS 6.7 - Cross Site Request Forgery (CSRF) to Cross Site Scripting (XSS) (Authenticated) - PHP webapps Exploit

https://www.exploit-db.com/exploits/50530
generic

Free shopping cart and content management system (CMS) - OpenSolution.org

https://opensolution.org/

Vendor Advisories for CVE-2021-47981(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 10× in last 7d / 59× 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 167 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-47981?
CVE-2021-47981 is a medium vulnerability published on May 16, 2026. Quick.CMS 6.7 contains a cross-site scripting vulnerability in the sliders form that allows authenticated attackers to inject malicious scripts by submitting XSS payloads through the sDescription parameter. Attackers can craft CSRF forms targeting the admin.php?p=sliders-form endpoint to execute…
When was CVE-2021-47981 disclosed?
CVE-2021-47981 was first published in the National Vulnerability Database on May 16, 2026, with the most recent update on May 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-47981 actively exploited?
CVE-2021-47981 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-47981?
CVE-2021-47981 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2021-47981?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47981, 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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