Security readout for executives and security teams
Plain-English summary
This is a critical WordPress theme vulnerability. Older Epsilon Framework-based themes could let an unauthenticated internet user trigger unsafe server-side functions, with potential remote code execution. For an affected public website, the business risk is full site compromise, data exposure, defacement, or malware placement.
Executive priority
Prioritize remediation urgently for any internet-facing WordPress site using these themes. The vulnerability has critical impact, requires no authentication, and has historical public reporting of large-scale targeting against the theme family.
Technical view
The flaw is a function injection issue in epsilon_framework_ajax_action across multiple WordPress themes and versions. The CVSS 3.1 score is 9.8 because attack requires network access, no login, no user interaction, and can impact confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on public WordPress sites running vulnerable versions of the named Epsilon Framework themes, including Shapely, NewsMag, Activello, Illdy, Sparkling, and related themes listed in the CVE description.
Exploitation context
The bundle says this CVE is not CISA KEV-listed. However, a cited Wordfence source reports large-scale attacks targeting Epsilon Framework themes in November 2020. Treat internet-facing vulnerable sites as high-risk even if current exploitation evidence is not provided here.
Researcher notes
The CVE bundle’s structured affected entries appear inconsistent with the descriptive affected-version ranges. Use the narrative version thresholds and cited advisories for triage, then confirm exact installed theme versions locally. Do not infer current exploitation beyond the cited 2020 reporting.
Mitigation direction
- Inventory WordPress sites for the named Epsilon Framework themes and vulnerable versions.
- Update affected themes using vendor or WordPress.org guidance where available.
- Remove or replace unsupported themes if no safe update is available.
- Review vendor advisories before assuming a specific fixed version.
- Prioritize internet-facing and business-critical WordPress sites first.
Validation and detection
- Confirm each WordPress theme name and version against the CVE affected-version list.
- Check whether epsilon_framework_ajax_action exists in deployed theme code.
- Review web logs for suspicious unauthenticated requests to WordPress AJAX endpoints.
- Verify patched or replacement themes are installed in production.
- Run authenticated WordPress vulnerability scanning with current signatures.
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-94: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-36708 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
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
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:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5b75c322-539d-44e9-8f26-5ff929874b67?source=cveCVE reference
- https://blog.nintechnet.com/unauthenticated-function-injection-vulnerability-fixed-in-15-wordpress-themes/CVE reference
- https://www.wordfence.com/blog/2020/11/large-scale-attacks-target-epsilon-framework-themes/CVE reference
- https://blog.nintechnet.com/unauthenticated-function-injection-vulnerability-in-wordpress-sparkling-theme/CVE reference
- https://wpscan.com/vulnerability/bec52a5b-c892-4763-a962-05da7100eca5CVE reference
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.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.