CVE-2026-21290

highpriority · track · 0EPSS 0.005 · 40 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (40th) EPSS

CVSS 8.7 · high

Is it mine?

49 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 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. A successful attacker can abuse this to achieve session takeover, increasing the confidentiality, and integrity impact to high. Exploitation of this issue requires user interaction in that a victim must browse to the page containing the vulnerable field.

cvss

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.7highAV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · ENISA EU

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · psirt@adobe.comexploitability 2.3 · impact 5.8

v3.18highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79USCWE-79US

affected products (49)

Products and version ranges known to be affected.

Adobe Magento <2.4.5‑p16all versionscert_bundDE
Adobe Magento <2.4.6‑p14all versionscert_bundDE
Adobe Magento <2.4.7‑p9all versionscert_bundDE
Adobe Magento <2.4.8‑p4all versionscert_bundDE
Adobe Magento <2.4.9‑beta1all versionscert_bundDE
Adobe Magento< 2.4.5‑p16cert_bundDE
Adobe Magento< 2.4.6‑p14cert_bundDE
Adobe Magento< 2.4.7‑p9cert_bundDE
Adobe Magento< 2.4.8‑p4cert_bundDE
Adobe Magento< 2.4.9‑beta1cert_bundDE
Adobe Adobe Commerce≤ 0 ≤2.4.4-p16enisa_euvdEU
Adobe Systems Inc. Adobe Commerce≤ 2.4.9-alpha3fstec_bduRU
Adobe Systems Inc. Adobe Commerce≤ 2.4.4-p16fstec_bduRU
Adobe Systems Inc. Adobe Commerce≤ 2.4.5-p15fstec_bduRU
Adobe Systems Inc. Adobe Commerce≤ 2.4.6-p13fstec_bduRU
Adobe Systems Inc. Adobe Commerce≤ 2.4.7-p8fstec_bduRU
Adobe Systems Inc. Adobe Commerce≤ 2.4.8-p3fstec_bduRU
Adobe Systems Inc. Adobe Commerce B2B≤ 1.3.4-p15fstec_bduRU
Adobe Systems Inc. Adobe Commerce B2B≤ 1.3.5-p13fstec_bduRU
Adobe Systems Inc. Adobe Commerce B2B≤ 1.4.2-p8fstec_bduRU

showing 20 of 49

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0087Kwetsbaarheden verholpen in Adobe CommerceNL2026-03-12csaf · ncsc_nlNL
Adobe heeft kwetsbaarheden verholpen in Adobe Commerce (tot versie 2.4.9-alpha3).
WID-SEC-W-2026-0668Adobe Magento: Mehrere SchwachstellenDeutsch2026-03-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Adobe Magento ausnutzen, um erweiterte Berechtigungen zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-03-11modified 2026-08-28

references (3)

External citations — patches, advisories, analysis.

scry

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