CVE-2026-7797

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'append_where_sql' parameter in all versions up to, and including, 1.6.11.8 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The /appointments/bulk REST endpoint is reachable by unauthenticated attackers because its permission check accepts a public nonce that is embedded in the booking widget's frontend JavaScript (ssa.api.public_nonce) and visible to all site visitors; exploitation requires issuing the request as a PUT with an application/x-www-form-urlencoded body so that PHP's superglobals are not populated and the blocklist check silently passes.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
42.5%
KEV
Not listed

Published

May 28, 2026

Last Modified

May 28, 2026

References (11)

Vendor Advisories for CVE-2026-7797(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 / 72× 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 160 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-7797?
CVE-2026-7797 is a high vulnerability published on May 28, 2026. The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'appendwheresql' parameter in all versions up to, and including, 1.6.11.8 due to insufficient escaping on the user supplied parameter and lack…
When was CVE-2026-7797 disclosed?
CVE-2026-7797 was first published in the National Vulnerability Database on May 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7797 actively exploited?
CVE-2026-7797 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-7797?
CVE-2026-7797 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-7797?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-7797, 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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