Security readout for executives and security teams
Plain-English summary
A flaw in TotalContest Lite for WordPress could let a low-privileged attacker abuse unsafe data deserialization. The published scoring indicates limited confidentiality, integrity, and availability impact. Business risk is concentrated on WordPress sites running TotalContest Lite through version 2.9.1.
Executive priority
Handle in the normal vulnerability remediation cycle, with higher priority for public WordPress sites, sites with many user accounts, or sites where contests collect sensitive data.
Technical view
CVE-2026-0677 is CWE-502 deserialization of untrusted data in TotalSuite TotalContest Lite. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L, scoring 6.3. Sources identify affected versions as TotalContest Lite through 2.9.1.
Likely exposure
Exposure is likely limited to WordPress installations with the TotalContest Lite plugin installed and at or below version 2.9.1. The CVSS vector requires low privileges, so unauthenticated exposure is not supported by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. It also does not provide exploit details, a gadget chain, or confirmed real-world abuse. Treat exploitation status as unconfirmed.
Researcher notes
Impact depends on reachable deserialization and available PHP object gadget paths, which are not documented in the provided sources. The affected-version metadata is partly sparse, so validate against the plugin package name and installed version rather than CPE matching.
Mitigation direction
- Inventory WordPress sites for TotalContest Lite installations.
- Check vendor, WordPress plugin, or Patchstack guidance for a fixed version.
- Update if an official patched release is available.
- Disable or remove the plugin where it is not business-critical.
- Limit low-privileged WordPress accounts to necessary users only.
Validation and detection
- Confirm whether TotalContest Lite is installed on each WordPress site.
- Record the installed plugin version and compare it with 2.9.1.
- Review vendor or Patchstack advisories for current remediation status.
- Check WordPress user roles for unnecessary low-privileged accounts.
- Monitor plugin-related logs for unusual authenticated activity.
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-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. 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 lookupCVE-2026-0677 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
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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:L/UI:N/S:U/C:L/I:L/A:L2.83.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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/totalcontest-lite/vulnerability/wordpress-totalcontest-lite-plugin-2-9-1-php-object-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.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.