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CVE-2026-34686

HIGHCVSS 8.7/10EPSS 0.40%

Last modified

CVE-2026-34686 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Probability
0.40%

32.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
AdobeCommerce2.4.4P1
AdobeCommerce2.4.5P1
AdobeCommerce2.4.6P1
AdobeCommerce2.4.7B1
AdobeCommerce2.4.8—
AdobeCommerce2.4.9Beta1
AdobeCommerce B2b1.3.3—
AdobeCommerce B2b1.3.4—
AdobeCommerce B2b1.4.2—
AdobeCommerce B2b1.5.2—
AdobeCommerce B2b1.5.3Beta1
AdobeMagento2.4.6—
AdobeMagento2.4.7—
AdobeMagento2.4.8—
AdobeMagento2.4.9Beta1

References

Timeline

Published
Last Modified
Status
Analyzed

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 score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2026-34686?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34686?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST