Security readout for executives and security teams
Plain-English summary
A critical flaw in the WordPress Modern Events Calendar plugin may let an unauthenticated internet user manipulate database queries. Sites running versions earlier than 7.35.0 could face serious information exposure and limited service disruption. The supplied sources do not report confirmed active exploitation.
Executive priority
Treat this as an immediate patching and exposure-review priority for public WordPress sites. First identify whether the plugin is deployed, then remediate affected versions and review logs. Escalation is warranted because exploitation requires neither authentication nor user interaction, although active attacks are not established by the supplied evidence.
Technical view
CVE-2026-73339 is an unauthenticated SQL injection vulnerability classified as CWE-89. Its CVSS 3.1 score is 9.3, with network access, low attack complexity, no privileges, and no user interaction required. The vector indicates high confidentiality impact, no integrity impact, and low availability impact.
Likely exposure
Internet-accessible WordPress sites using Modern Events Calendar earlier than version 7.35.0 are the likely exposure group. The bundle provides no precise vulnerable endpoint, deployment prevalence, or reliable product-version enumeration method. Sites without the plugin, or running 7.35.0 or later, are not identified as affected.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source establishes active exploitation. Nevertheless, unauthenticated, low-complexity, network-reachable SQL injection presents substantial risk where a vulnerable plugin version is publicly accessible.
Researcher notes
The public bundle supports the vulnerability class, pre-7.35.0 boundary, and CVSS vector, but contains no vulnerable parameter, endpoint, root-cause detail, proof of concept, or confirmed exploitation evidence. The structured affected-product entry lists versions as “n/a” and default status “unaffected,” creating ambiguity; validate scope against current vendor or CNA guidance.
Mitigation direction
- Inventory WordPress sites using Modern Events Calendar and record installed versions.
- Prioritize updating versions earlier than 7.35.0 to 7.35.0 or later.
- Consult Webnus and Patchstack guidance before applying compensating controls.
- Restrict public exposure or disable the plugin if an immediate update is impossible.
- Back up the site and database before remediation.
Validation and detection
- Confirm the installed plugin version is 7.35.0 or later.
- Verify no older plugin copies remain in production, staging, or archived deployments.
- Review web, application, and database logs for suspicious requests or query errors.
- Confirm the site operates normally after updating or disabling the plugin.
- Monitor vendor guidance for revised affected-version or remediation information.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-73339 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L3.94.7PatchstackVulnerability scoring details
Base CVSS 3.1 score
9.3CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://patchstack.com/database/wordpress/plugin/modern-events-calendar/vulnerability/wordpress-modern-events-calendar-plugin-7-35-0-sql-injection-vulnerability?_s_id=cveCVE reference, Patchstack · vdb-entry
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.