CVE-2026-119714 (GCVE-0-2026-119714)
Vulnerability from cvelistv5 – Published: 2026-10-30 15:16 – Updated: 2026-10-30 15:42
VLAI
EPSS
VEX
Title
My Calendar 3.8.8 before 3.8.11 Unauthenticated Shortcode Injection via mcs Parameter
Summary
My Calendar WordPress plugin 3.8.8 before 3.8.11 contains a shortcode injection vulnerability that allows unauthenticated attackers to execute registered shortcodes via the mcs search parameter. The mcs value reaches mc_search_results() in src/my-calendar-search.php without bracket encoding before do_shortcode runs, so a GET request triggers shortcodes on any page or post, enabling content injection and spoofing.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 15:41 UTC
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/joedolson/my-calendar/commit/d… | patch |
| https://github.com/joedolson/my-calendar | product |
| https://github.com/joedolson/my-calendar/releases… | release-notes |
| https://github.com/joedolson/my-calendar/blob/v3.… | technical-description |
| https://www.vulncheck.com/advisories/my-calendar-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| joedolson | My Calendar - Accessible Event Manager |
Affected:
3.8.8 , < 3.8.11
(semver)
cpe:2.3:a:joedolson:my_calendar:*:*:*:*:*:wordpress:*:* |
Date Public
2026-10-25 00:00
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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How durations are calculated
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.