SB2026082666 - Multiple vulnerabilities in Adobe Experience Manager

Description

This security bulletin contains information about 3 vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2026-34691)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to cross-site scripting (stored xss) in Adobe Experience Manager Forms when handling crafted content. A remote attacker can inject a malicious script to execute arbitrary code.

User interaction is required.

2) Cross-site scripting (CVE-ID: CVE-2026-34693)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to cross-site scripting (reflected xss) in Adobe Experience Manager Forms when handling crafted input. A remote attacker can send a specially crafted request to execute arbitrary code.

User interaction is required.

3) Cross-site scripting (CVE-ID: CVE-2026-34694)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to cross-site scripting (stored xss) in Adobe Experience Manager Forms when handling crafted content. A remote privileged user can inject a malicious script to execute arbitrary code.

User interaction is required.

Remediation

Install update from vendor's website.

References

• https://helpx.adobe.com/security/products/aem-forms/apsb26-57.html
• https://helpx.adobe.com/security/products/experience-manager/apsb26-57.html