The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify site-wide payment settings — including WooCommerce payment enablement, cart redirect behavior, login requirements for checkout, confirmation page ID, and confirmed ticket statuses — that govern how all event bookings are processed.
CVE-2026-17166
MEDIUMPre-NVD 4.34.3—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 4.3 from GitHub Security Advisory published 2026-07-29. a secondary CVSS source baseline 4.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(high)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: 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 computedSeverity43% × 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 (8)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/mage-eventpress/tags/5.3.7/admin/settings/global/admin_setting_panel.php#L1080
- security@wordfencehttps://plugins.trac.wordpress.org/browser/mage-eventpress/tags/5.3.7/admin/settings/global/admin_setting_panel.php#L1120
- security@wordfencehttps://plugins.trac.wordpress.org/browser/mage-eventpress/tags/5.3.7/admin/settings/global/admin_setting_panel.php#L25
- security@wordfencehttps://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/admin/settings/global/admin_setting_panel.php#L1080
- security@wordfencehttps://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/admin/settings/global/admin_setting_panel.php#L1120
- security@wordfencehttps://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/admin/settings/global/admin_setting_panel.php#L25
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?reponame=&old=3625494%40mage-eventpress&new=3625494%40mage-eventpress
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/5f43e35e-55cd-45f1-b8a5-e47398d97cc2?source=cve
Vendor Advisories for CVE-2026-17166(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 9× in last 7d / 9× 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.
- 2026-07-31 15:37 UTCEG score recompute
- 2026-07-31 15:37 UTCGHSA enrichment
- 2026-07-30 14:09 UTCEG score recompute
- 2026-07-30 14:09 UTCGHSA enrichment
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 13:19 UTCEG score recompute
- 2026-07-29 13:18 UTCGHSA enrichment
- 2026-07-29 02:19 UTCEG score recompute
- 2026-07-29 02:17 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-17166?
CVE-2026-17166 is a medium vulnerability published on July 29, 2026. The Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.3.7. This is due to the plugin not properly verifying that a user is authorized to perform an…
When was CVE-2026-17166 disclosed?
CVE-2026-17166 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-2026-17166 actively exploited?
CVE-2026-17166 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-2026-17166?
CVE-2026-17166 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-17166?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17166, 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-2026-17166
Is Your Infrastructure Affected by CVE-2026-17166?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.