CVE-2025-53092

mediumpriority · track · 0EPSS 0.003 · 21 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.29% (21st) EPSS

CVSS 6.5 · medium

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Strapi is an open source headless content management system. Strapi versions prior to 5.20.0 contain a CORS misconfiguration vulnerability in default installations. By default, Strapi reflects the value of the Origin header back in the Access-Control-Allow-Origin response header without proper validation or whitelisting. This allows an attacker-controlled site to send credentialed requests to the Strapi backend. An attacker can exploit this by hosting a malicious site on a different origin (e.g., different port) and sending requests with credentials to the Strapi API. The vulnerability is fixed in version 5.20.0. No known workarounds exist.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · security-advisories@github.comexploitability 2.8 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-200USCWE-284USCWE-284USCWE-364USCWE-364USCWE-942USCWE-942US

affected products (9)

Products and version ranges known to be affected.

Open Source Strapi <5.10.3all versionscert_bundDE
Open Source Strapi <5.20.0all versionscert_bundDE
Open Source Strapi <5.5.2all versionscert_bundDE
Open Source Strapi< 5.10.3cert_bundDE
Open Source Strapi< 5.20.0cert_bundDE
Open Source Strapi< 5.5.2cert_bundDE
strapi Strapi≤ < 5.20.0enisa_euvdEU
strapi strapi< 5.20.0nvdUScpe:2.3:a:strapi:strapi:*:*:*:*:*:*:*:*
npm @strapi/core< 5.20.0osvUSpkg:npm/%40strapi/core

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2332Strapi: Mehrere SchwachstellenDeutsch2025-10-16csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in Strapi ausnutzen, um Sicherheitsvorkehrungen zu umgehen, einen Denial-of-Service-Zustand zu verursachen und vertrauliche Informationen offenzulegen.
GHSA-9329-mxxw-qwf8Strapi core vulnerable to sensitive data exposure via CORS misconfiguration2025-10-16ghsa · osvUS
### Summary A CORS misconfiguration vulnerability exists in default installations of Strapi where attacker-controlled origins are improperly reflected in API responses. ### Technical Details By default, Strapi reflects the value of the Origin header back in the Access-Control-Allow-Origin response header without proper validation or whitelisting. Example: `Origin: http://localhost:8888` `Access-Control-Allow-Origin: http://localhost:8888` `Access-Control-Allow-Credentials: true` This allows an attacker-controlled site (on a different port, like 8888) to send credentialed requests to the Strapi backend on 1337. ### Suggested Fix 1. Explicitly whitelist trusted origins 2. Avoid reflecting dynamic origins

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2025-10-16modified 2026-10-19

references (4)

External citations — patches, advisories, analysis.

scry

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