The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.14 via the 'vcal' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate occurrence IDs and access the full iCalendar export of non-public, draft, trashed, and personal calendar events, disclosing sensitive event metadata including titles, descriptions, dates, locations, organizer and host details, permalinks, and related calendar metadata.
CVE-2026-11896
MEDIUMPre-NVD 5.35.3—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
Score 5.3 from GitHub Security Advisory published 2026-07-02. a secondary CVSS source baseline 5.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(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 computedSeverity53% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 43%
- KEV
- Not listed
Published
July 2, 2026
Last Modified
July 2, 2026
References (14)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/date-utilities.php#L417
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/includes/ical.php#L26
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php#L212
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-api.php#L246
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar-events.php#L748
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.14/my-calendar.php#L209
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/date-utilities.php#L417
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/trunk/includes/ical.php#L26
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php#L212
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-api.php#L246
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-events.php#L748
- security@wordfencehttps://plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar.php#L209
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3572191%40my-calendar&new=3572191%40my-calendar&sfp_email=&sfph_mail=
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/a72639df-fa05-414c-b30c-eb285f59d945?source=cve
Vendor Advisories for CVE-2026-11896(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 13× in last 7d / 80× 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 132 total refreshes for this CVE.
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 02:41 UTCEG score recompute
- 2026-08-25 02:41 UTCGHSA enrichment
- 2026-08-24 04:10 UTCGHSA enrichment
- 2026-08-23 05:25 UTCEG score recompute
- 2026-08-23 05:25 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 06:44 UTCEG score recompute
- 2026-08-22 06:44 UTCGHSA enrichment
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-21 04:29 UTCEG score recompute
- 2026-08-21 04:29 UTCGHSA enrichment
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 04:24 UTCEG score recompute
- 2026-08-20 04:24 UTCGHSA enrichment
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 03:55 UTCEG score recompute
- 2026-08-19 03:55 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-18 04:44 UTCEG score recompute
- 2026-08-18 04:44 UTCGHSA enrichment
- 2026-08-17 05:01 UTCEG score recompute
- 2026-08-17 05:01 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 06:29 UTCEG score recompute
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- 2026-08-16 06:29 UTCGHSA enrichment
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 07:59 UTCEG score recompute
- 2026-08-15 07:59 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 09:06 UTCEG score recompute
- 2026-08-14 09:06 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 10:35 UTCEG score recompute
- 2026-08-13 10:35 UTCGHSA enrichment
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-12 12:03 UTCEG score recompute
- 2026-08-12 12:03 UTCGHSA enrichment
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-11 13:32 UTCEG score recompute
- 2026-08-11 13:32 UTCGHSA enrichment
- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-10 15:01 UTCGHSA enrichment
- 2026-08-09 16:29 UTCEG score recompute
- 2026-08-09 16:29 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-08 17:58 UTCEG score recompute
- 2026-08-08 17:58 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-07 19:26 UTCEG score recompute
- 2026-08-07 19:26 UTCGHSA enrichment
- 2026-08-06 20:55 UTCEG score recompute
- 2026-08-06 20:55 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 22:24 UTCEG score recompute
- 2026-08-05 22:24 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-04 23:54 UTCEG score recompute
- 2026-08-04 23:54 UTCGHSA enrichment
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 10:38 UTCEPSS rescore
- 2026-08-04 01:23 UTCEG score recompute
- 2026-08-04 01:23 UTCGHSA enrichment
- 2026-08-03 10:35 UTCEPSS rescore
- 2026-08-03 02:52 UTCGHSA enrichment
- 2026-08-02 04:21 UTCEG score recompute
- 2026-08-02 04:21 UTCGHSA enrichment
- 2026-08-02 02:26 UTCEPSS rescore
- 2026-08-01 05:50 UTCEG score recompute
- 2026-08-01 05:49 UTCGHSA enrichment
- 2026-08-01 04:15 UTCEPSS rescore
- 2026-07-31 07:11 UTCEG score recompute
- 2026-07-31 07:11 UTCGHSA enrichment
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 08:37 UTCEG score recompute
- 2026-07-30 08:37 UTCGHSA enrichment
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 08:44 UTCEG score recompute
- 2026-07-29 08:44 UTCGHSA enrichment
- 2026-07-28 15:36 UTCEPSS rescore
- 2026-07-28 10:12 UTCEG score recompute
- 2026-07-28 10:12 UTCGHSA enrichment
- 2026-07-27 14:13 UTCEPSS rescore
- 2026-07-27 11:40 UTCEG score recompute
- 2026-07-27 11:40 UTCGHSA enrichment
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 13:09 UTCEG score recompute
- 2026-07-26 13:09 UTCGHSA enrichment
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:05 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
Frequently asked(5)
What is CVE-2026-11896?
CVE-2026-11896 is a medium vulnerability published on July 2, 2026. The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.14 via the 'vcal' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to…
When was CVE-2026-11896 disclosed?
CVE-2026-11896 was first published in the National Vulnerability Database on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11896 actively exploited?
CVE-2026-11896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.7% of all scored CVEs.
What is the CVSS score of CVE-2026-11896?
CVE-2026-11896 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-11896?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11896, 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-2026-11896
Is Your Infrastructure Affected by CVE-2026-11896?
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