Security readout for executives and security teams
Plain-English summary
CVE-2026-3058 affects the Seraphinite Accelerator WordPress plugin through version 2.28.14. A logged-in low-privilege user, such as a Subscriber, could view sensitive operational information. This is not described as site takeover, but it may expose details useful for further targeting.
Executive priority
Treat as a routine but timely WordPress plugin update. Prioritize sites with public registration, many Subscriber accounts, or sensitive operational architecture. No public source provided here indicates active exploitation.
Technical view
The issue is CWE-200 sensitive information exposure in the `seraph_accel_api` AJAX path when `fn=GetData` reaches `OnAdminApi_GetData()` without adequate capability checks. CVSS is 4.3, network-accessible, low complexity, requiring low privileges, with confidentiality impact only.
Likely exposure
WordPress sites running Seraphinite Accelerator version 2.28.14 or earlier are the likely exposure. Risk requires an authenticated account with Subscriber-level access or higher.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Abuse requires valid site credentials, but many WordPress sites allow low-privilege registrations or have numerous content users.
Researcher notes
The Wordfence entry and CVE text identify missing capability checks around `OnAdminApi_GetData()`. WordPress Trac references include relevant code locations and a changeset. The available evidence supports information exposure, not integrity or availability impact.
Mitigation direction
- Inventory WordPress sites using Seraphinite Accelerator.
- Upgrade Seraphinite Accelerator to a version newer than 2.28.14 if available.
- If no update is available, monitor vendor and WordPress plugin guidance.
- Restrict or review unnecessary Subscriber-level accounts.
- Disable open user registration unless business-required.
Validation and detection
- Check installed Seraphinite Accelerator versions across WordPress assets.
- Flag any installation at version 2.28.14 or earlier.
- Review whether public or broad user registration is enabled.
- Confirm low-privilege users cannot access administrative operational data.
- Review access logs for unusual authenticated AJAX 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-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2026-3058 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bf539c01-596a-44dd-9587-6be6978ab0fa?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/seraphinite-accelerator/trunk/main.php#L2288CVE reference
- https://plugins.trac.wordpress.org/browser/seraphinite-accelerator/trunk/Cmn/Plugin.php#L598CVE reference
- https://plugins.trac.wordpress.org/changeset/3468084/seraphinite-accelerator/trunk/main.php?contextall=1CVE 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.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.