CVE-2026-8791

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-07-29. a secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
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: None knownExposed: 0

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

The Booking System Trafft plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the bookingWebsiteUrl setting in all versions up to, and including, 1.0.17 due to a missing capability check on the set_options AJAX action when the plugin is operating in agency mode. The trafftSetOptions() handler verifies a nonce that is exposed to any authenticated user (it is printed inline on every admin page, including profile.php) but performs no capability check before calling update_option('trafft_option', ['bookingWebsiteUrl' => ...]). This setting is then used by trafftAdminAssets() to enqueue /embed.js as a script on every front-end page that renders the booking shortcode. This makes it possible for authenticated attackers, with Subscriber-level access and above, to point the embed-script URL at an attacker-controlled origin and execute arbitrary JavaScript in the browser of every site visitor (including admins).

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 29, 2026

Last Modified

July 30, 2026

References (11)

Vendor Advisories for CVE-2026-8791(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 16× in last 7d / 79× 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.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:22 UTCEG score recompute
  3. 2026-08-29 23:22 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-27 04:49 UTCEG score recompute
  7. 2026-08-27 04:49 UTCGHSA enrichment
  8. 2026-08-26 14:47 UTCEPSS rescore
  9. 2026-08-26 03:32 UTCEG score recompute
  10. 2026-08-26 03:32 UTCGHSA enrichment
  11. 2026-08-25 13:49 UTCEPSS rescore
  12. 2026-08-25 02:15 UTCEG score recompute
  13. 2026-08-25 02:15 UTCGHSA enrichment
  14. 2026-08-24 14:18 UTCEPSS rescore
  15. 2026-08-24 00:59 UTCEG score recompute
  16. 2026-08-24 00:59 UTCGHSA enrichment
  17. 2026-08-23 00:19 UTCEPSS rescore
  18. 2026-08-22 23:44 UTCEG score recompute
  19. 2026-08-22 23:44 UTCGHSA enrichment
  20. 2026-08-21 23:49 UTCEPSS rescore
  21. 2026-08-21 22:28 UTCEG score recompute
  22. 2026-08-21 22:28 UTCGHSA enrichment
  23. 2026-08-20 22:56 UTCEPSS rescore
  24. 2026-08-20 21:11 UTCGHSA enrichment
  25. 2026-08-19 19:55 UTCEG score recompute
Show 64 more
  1. 2026-08-19 19:55 UTCGHSA enrichment
  2. 2026-08-19 17:04 UTCEPSS rescore
  3. 2026-08-18 18:36 UTCEG score recompute
  4. 2026-08-18 18:36 UTCGHSA enrichment
  5. 2026-08-18 13:49 UTCEPSS rescore
  6. 2026-08-18 13:49 UTCEPSS rescore
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 12:14 UTCEG score recompute
  9. 2026-08-17 12:14 UTCGHSA enrichment
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 10:56 UTCEG score recompute
  13. 2026-08-16 10:56 UTCGHSA enrichment
  14. 2026-08-16 02:15 UTCEPSS rescore
  15. 2026-08-15 09:41 UTCEG score recompute
  16. 2026-08-15 09:41 UTCGHSA enrichment
  17. 2026-08-15 01:31 UTCEPSS rescore
  18. 2026-08-14 08:25 UTCEG score recompute
  19. 2026-08-14 08:25 UTCGHSA enrichment
  20. 2026-08-13 22:00 UTCEPSS rescore
  21. 2026-08-13 07:10 UTCEG score recompute
  22. 2026-08-13 07:10 UTCGHSA enrichment
  23. 2026-08-12 13:51 UTCEPSS rescore
  24. 2026-08-12 05:39 UTCEG score recompute
  25. 2026-08-12 05:39 UTCGHSA enrichment
  26. 2026-08-11 13:43 UTCEPSS rescore
  27. 2026-08-11 04:23 UTCEG score recompute
  28. 2026-08-11 04:23 UTCGHSA enrichment
  29. 2026-08-11 00:00 UTCEPSS rescore
  30. 2026-08-10 03:07 UTCEG score recompute
  31. 2026-08-10 03:07 UTCGHSA enrichment
  32. 2026-08-09 13:47 UTCEPSS rescore
  33. 2026-08-09 01:52 UTCEG score recompute
  34. 2026-08-09 01:52 UTCGHSA enrichment
  35. 2026-08-08 16:37 UTCEPSS rescore
  36. 2026-08-08 00:36 UTCEG score recompute
  37. 2026-08-08 00:36 UTCGHSA enrichment
  38. 2026-08-07 16:30 UTCEPSS rescore
  39. 2026-08-06 23:19 UTCGHSA enrichment
  40. 2026-08-05 22:04 UTCEG score recompute
  41. 2026-08-05 22:04 UTCGHSA enrichment
  42. 2026-08-05 19:17 UTCEPSS rescore
  43. 2026-08-05 19:17 UTCEPSS rescore
  44. 2026-08-04 20:48 UTCEG score recompute
  45. 2026-08-04 20:48 UTCGHSA enrichment
  46. 2026-08-04 15:10 UTCEPSS rescore
  47. 2026-08-04 10:39 UTCEPSS rescore
  48. 2026-08-03 19:12 UTCGHSA enrichment
  49. 2026-08-02 17:57 UTCEG score recompute
  50. 2026-08-02 17:57 UTCGHSA enrichment
  51. 2026-08-02 02:27 UTCEPSS rescore
  52. 2026-08-01 16:41 UTCGHSA enrichment
  53. 2026-07-31 15:25 UTCEG score recompute
  54. 2026-07-31 15:25 UTCGHSA enrichment
  55. 2026-07-30 16:28 UTCEPSS rescore
  56. 2026-07-30 14:09 UTCEG score recompute
  57. 2026-07-30 14:09 UTCGHSA enrichment
  58. 2026-07-29 16:25 UTCEG score recompute
  59. 2026-07-29 16:25 UTCGHSA enrichment
  60. 2026-07-29 15:33 UTCEG score recompute
  61. 2026-07-29 15:33 UTCGHSA enrichment
  62. 2026-07-29 11:32 UTCEG score recompute
  63. 2026-07-29 10:23 UTCEG score recompute
  64. 2026-07-29 10:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8791?
CVE-2026-8791 is a medium vulnerability published on July 29, 2026. The Booking System Trafft plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the bookingWebsiteUrl setting in all versions up to, and including, 1.0.17 due to a missing capability check on the setoptions AJAX action when the plugin is operating in agency mode. The…
When was CVE-2026-8791 disclosed?
CVE-2026-8791 was first published in the National Vulnerability Database on July 29, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8791 actively exploited?
CVE-2026-8791 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 85.8% of all scored CVEs.
What is the CVSS score of CVE-2026-8791?
CVE-2026-8791 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-8791?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8791, 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

Explore the affected products and dependency analysis for CVE-2026-8791

Explore →

Is Your Infrastructure Affected by CVE-2026-8791?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs