How severe is CVE-2026-34691?

CVE-2026-34691 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-34691 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34691?

CVE-2026-34691 primarily affects Adobe Experience Manager. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-34691?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-34691 have an EU (EUVD) identifier?

Yes. CVE-2026-34691 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35763.

When was CVE-2026-34691 published?

CVE-2026-34691 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2026-34691

CVE-2026-34691 is a critical-severity vulnerability in Adobe Experience Manager with a CVSS 3.x base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.3)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35763
Weakness: CWE-79
Affected product: Adobe Experience Manager
Published: 2026-06-09
Last modified: 2026-06-17

Description

Adobe Experience Manager Forms JEE versions LTS SP1, 6.5.24.0 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by an 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, potentially gaining elevated access or control over the victim's account or session. Scope is changed.

Frequently asked questions

What is CVE-2026-34691?: Adobe Experience Manager Forms JEE versions LTS SP1, 6.5.24.0 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by an 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, potentially gaining elevated access or control over the victim's account or session. Scope is changed.
How severe is CVE-2026-34691?: CVE-2026-34691 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-34691 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34691?: CVE-2026-34691 primarily affects Adobe Experience Manager. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-34691?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-34691 have an EU (EUVD) identifier?: Yes. CVE-2026-34691 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35763.
When was CVE-2026-34691 published?: CVE-2026-34691 was published on 2026-06-09 and last updated on 2026-06-17.

References

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

Affected products (3)

cpe:2.3:a:adobe:experience_manager:*:*:*:*:-:*:*:*
cpe:2.3:a:adobe:experience_manager:6.5:-:*:*:lts:*:*:*
cpe:2.3:a:adobe:experience_manager:6.5:sp1:*:*:lts:*:*:*

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