CVE-2021-47926

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
Trending — 3 sources updated this weekElevated
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.

Contact Form to Email 1.3.24 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by creating forms with script tags in the form name field. Attackers can craft form names containing JavaScript code that executes when other logged-in users access the form management page, 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
9%
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 Contact Form to Email 1.3.24 Stored XSS | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wordpress-contact-form-to-email-stored-xss
generic🟡 PoC Available

WordPress Plugin Contact Form to Email 1.3.24 - Stored Cross Site Scripting (XSS) (Authenticated) - PHP webapps Exploit

https://www.exploit-db.com/exploits/50524
generic

Contact Form to Email - Contact Form to Email

https://form2email.dwbooster.com/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 43× 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 158 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-47926?
CVE-2021-47926 is a medium vulnerability published on May 10, 2026. Contact Form to Email 1.3.24 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by creating forms with script tags in the form name field. Attackers can craft form names containing JavaScript code that executes when other logged-in…
When was CVE-2021-47926 disclosed?
CVE-2021-47926 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-2021-47926 actively exploited?
CVE-2021-47926 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 91.4% of all scored CVEs.
What is the CVSS score of CVE-2021-47926?
CVE-2021-47926 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2021-47926?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47926, 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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