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PatchSiren cyber security CVE debrief

CVE-2026-75643 Adobe CVE debrief

A stored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager could allow a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. The vulnerability affects Adobe Experience Manager instances, and defenders should assess exposure and apply patches or mitigations to prevent exploitation. The vulnerability is caused by inadequate input validation and sanitization of user-supplied input.

Vendor
Adobe
Product
Experience Manager
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-11
Advisory published
2026-09-08
Advisory updated
2026-09-11

Who should care

Defenders responsible for Adobe Experience Manager instances, security teams, and IT administrators should assess exposure and take necessary actions to prevent exploitation. Defenders should prioritize assessing exposure and applying patches or mitigations to prevent exploitation of this vulnerability. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and take necessary actions.

Why it matters

A stored Cross-Site Scripting (XSS) vulnerability in Adobe Experience Manager could allow a low-privileged attacker to inject malicious scripts into vulnerable form fields, potentially leading to execution of malicious JavaScript in a victim's browser.

  • Defenders must assess exposure of Adobe Experience Manager instances to this vulnerability
  • Applying patches or mitigations is necessary to prevent exploitation
  • Monitoring for suspicious activity or exploitation attempts is recommended

Technical summary

The vulnerability is caused by inadequate input validation and sanitization of user-supplied input in Adobe Experience Manager. An attacker could inject malicious scripts into vulnerable form fields, which may be executed in a victim's browser when they browse to the page containing the vulnerable field. The vulnerability affects Adobe Experience Manager instances, and defenders should assess exposure and apply patches or mitigations to prevent exploitation. Defenders should prioritize assessing exposure and applying patches or mitigations to prevent exploitation of this vulnerability.

Defensive priority

Defenders should prioritize assessing exposure and applying patches or mitigations to prevent exploitation of this vulnerability.

Recommended defensive actions

  • Assess exposure of Adobe Experience Manager instances to this vulnerability
  • Apply patches or mitigations provided by Adobe to prevent exploitation
  • Monitor for suspicious activity or exploitation attempts
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. The official CVE Program record and NVD detail page offer source-provided CVE metadata and source-specific vulnerability assessment. Defenders should verify affected scope, severity, and vendor guidance through official advisories or CVE records.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-75643 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-75643

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-75643 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-75643

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.