CVE-2025-47933: Argo CD allows cross-site scripting on repositories page

Should you act?

Critical, preconditions apply

Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
• EPSS 0.5%, percentile 39: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 39% of all scored CVEs (low). EPSS is a probability, not a verdict.
• Needs an account (low (any account)). Exposure depends on who can log in.
• Only applies if your dependency tree includes github.com/argoproj/argo-cd (Go) >= 1.2.0-rc1, <= 1.8.7, no fixed version listed; github.com/argoproj/argo-cd/v2 (Go) >= 2.0.0-rc3, < 2.13.8, fixed in 2.13.8; github.com/argoproj/argo-cd/v2 (Go) >= 2.14.0-rc1, < 2.14.13, fixed in 2.14.13; github.com/argoproj/argo-cd/v3 (Go) < 3.0.4, fixed in 3.0.4. Check your lockfile, including transitive dependencies.

What it is

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Prior to versions 2.13.8, 2.14.13, and 3.0.4, an attacker can perform arbitrary actions on behalf of the victim via the API. Due to the improper filtering of URL protocols in the repository page, an attacker can achieve cross-site scripting with permission to edit the repository. This issue has been patched in versions 2.13.8, 2.14.13, and 3.0.4.

From the GitHub advisory

Impact This vulnerability allows an attacker to perform arbitrary actions on behalf of the victim via the API, such as creating, modifying, and deleting Kubernetes resources. Due to the improper filtering of URL protocols in the repository page, an attacker can achieve cross-site scripting with permission to edit the repository.

In ui/src/app/shared/components/urls.ts, the following code exists to parse the repository URL.

https://github.com/argoproj/argo-cd/blob/0ae5882d5ae9fe88efc51f65ca8543fb8c3a0aa1/ui/src/app/shared/components/urls.ts#L14-L26

Since this code doesn't validate the protocol of repository URLs, it's possible to inject javascript: URLs here.

https://github.com/argoproj/argo-cd/blob/0ae5882d5ae9fe88efc51f65ca8543fb8c3a0aa1/ui/src/app/shared/components/repo.tsx#L5-L7

Weakness type: CWE-79.

Product: github.com/argoproj/argo-cd (Go) · Assigned by: GitHub_M · Published: 2025-05-29

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: low (any account)
• User interaction: required (a user must click/open something)
• Scope: changed (can affect other components)

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
• CISA SSVC assessment: exploitation none, automatable no, technical impact total.
• FIRST EPSS (model of 2026-10-21): 0.47% probability of exploitation activity in the next 30 days; percentile 39.

Timeline

• 2025-05-28 — GitHub-reviewed advisory GHSA-2hj5-g64g-fp6p published (critical)
• 2025-05-29 — CVE record published by GitHub_M
• 2025-05-30 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

1. GitHub Advisory GHSA-2hj5-g64g-fp6p github.com
2. CVE.org record CVE-2025-47933 cve.org
3. NVD entry CVE-2025-47933 nvd.nist.gov

Other references from the CVE record and advisory

1. github.com github.com
2. github.com github.com

Critical Go advisories · Today’s Security Digest