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PatchSiren cyber security CVE debrief

CVE-2026-57693 Spacetime CVE debrief

CVE-2026-57693 is a Cross-site Scripting vulnerability in Ad Inserter, a WordPress plugin. The vulnerability has a CVSS score of 6.5 and is classified as MEDIUM. The issue affects Ad Inserter from n/a through <= 2.8.11. The vulnerability is caused by Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. Users of Ad Inserter plugin for WordPress should be aware of this vulnerability and take necessary actions to mitigate the risk.

Vendor
Spacetime
Product
Ad Inserter
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-13
Original CVE updated
2026-07-13
Advisory published
2026-07-13
Advisory updated
2026-07-13

Who should care

Users of Ad Inserter plugin for WordPress should be aware of this vulnerability and take necessary actions to mitigate the risk. The vulnerability has a CVSS score of 6.5 and is classified as MEDIUM. The issue affects Ad Inserter from n/a through <= 2.8.11. The vulnerability is caused by Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting.

Technical summary

The vulnerability is caused by Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L. The vulnerability affects Ad Inserter from n/a through <= 2.8.11. The issue has a CVSS score of 6.5 and is classified as MEDIUM. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity.

Defensive priority

Medium priority due to the CVSS score and potential impact.

Recommended defensive actions

  • Update Ad Inserter plugin to a version greater than 2.8.11
  • Monitor for suspicious activity on the affected systems
  • Consider implementing additional security measures such as input validation and output encoding
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability was reported by [email protected] and is documented in the NVD database. The issue affects Ad Inserter from n/a through <= 2.8.11. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity. The CVE record was published on 2026-07-13T10:16:36.780Z and has not been modified since then. The vulnerability has a CVSS score of 6.5 and is classified as MEDIUM.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-13T10:16:36.780Z and has not been modified since then.