Security readout for executives and security teams
Plain-English summary
CVE-2023-51353 is a broken access control issue in the WordPress Popup by Supsystic plugin through version 1.10.19. The main concern is unauthorized change or misuse of plugin-controlled functionality, not data theft or outage based on the supplied CVSS data.
Executive priority
Treat this as a moderate WordPress exposure issue. It does not show evidence of data theft, outage, or known active exploitation in the supplied sources, but unauthenticated integrity impact warrants timely inventory and remediation.
Technical view
The vulnerability is classified as CWE-862 Missing Authorization. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, meaning remote unauthenticated access may cause limited integrity impact. The source bundle does not identify the exact endpoint, action, patch version, or workaround.
Likely exposure
Exposure is limited to WordPress sites running Popup by Supsystic, package popup-by-supsystic, through version 1.10.19. Sites not using this plugin are not indicated as affected by the provided sources.
Exploitation context
The CVSS vector supports network-reachable, low-complexity, unauthenticated exploitation with no user interaction. The CVE is not listed as KEV in the supplied bundle, and no cited source here confirms active exploitation.
Researcher notes
Important technical details are missing from the source bundle, including affected routes, vulnerable actions, proof of concept, and fixed-version information. Validate exposure conservatively by plugin presence and version, then rely on vendor or Patchstack updates for remediation specifics.
Mitigation direction
- Inventory WordPress sites for Popup by Supsystic installations.
- Check installed plugin versions for 1.10.19 or older.
- Review vendor and Patchstack guidance for a fixed release or workaround.
- Disable the plugin temporarily if exposure is unacceptable and functionality is nonessential.
- Prioritize remediation on internet-facing WordPress sites.
Validation and detection
- Confirm whether popup-by-supsystic is installed on each WordPress site.
- Record the exact installed plugin version.
- Review web server and WordPress logs for suspicious unauthenticated plugin activity.
- Verify remediation against vendor or Patchstack guidance when available.
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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2023-51353 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.