How severe is CVE-2026-34686?

CVE-2026-34686 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-34686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34686?

CVE-2026-34686 primarily affects Adobe Commerce. In total, 154 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-34686?

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

Does CVE-2026-34686 have an EU (EUVD) identifier?

Yes. CVE-2026-34686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29781.

When was CVE-2026-34686 published?

CVE-2026-34686 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-34686

CVE-2026-34686 is a high-severity vulnerability in Adobe Commerce with a CVSS 3.x base score of 8.7. 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: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29781
Weakness: CWE-79
Affected product: Adobe Commerce
Published: 2026-05-12
Last modified: 2026-06-17

Description

Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by 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, potentially gaining elevated access or control over the victim's account or session. Scope is changed.

Frequently asked questions

What is CVE-2026-34686?: Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier are affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by 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, potentially gaining elevated access or control over the victim's account or session. Scope is changed.
How severe is CVE-2026-34686?: CVE-2026-34686 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-34686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34686?: CVE-2026-34686 primarily affects Adobe Commerce. In total, 154 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-34686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-34686 have an EU (EUVD) identifier?: Yes. CVE-2026-34686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29781.
When was CVE-2026-34686 published?: CVE-2026-34686 was published on 2026-05-12 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/magento/apsb26-49.html

Affected products (154)

cpe:2.3:a:adobe:commerce:2.4.4:p1:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p10:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p11:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p12:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p13:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p14:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p15:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p16:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p17:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p2:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p3:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p4:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p5:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p6:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p7:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p8:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.4:p9:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p1:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p10:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p11:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p12:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p13:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p14:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p15:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p16:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p2:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p3:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p4:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p5:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p6:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p7:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p8:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.5:p9:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p1:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p10:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p11:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p12:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p13:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p14:*:*:*:*:*:*
cpe:2.3:a:adobe:commerce:2.4.6:p2:*:*:*:*:*:*

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