Is CVE-2026-27612 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-27612, but active exploitation has not been confirmed.

Can CVE-2026-27612 be exploited remotely?

Yes. CVE-2026-27612 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27612?

CVE-2026-27612 has a CVSS score of 6.1 (MEDIUM) and an EPSS exploitation probability of 0.03%.

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MEDIUMPOC

CVE-2026-27612

CWE-79Published: February 25, 2026· Updated: Feb 27, 2026

6.1

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.0th

Official Description

Repostat is a React component to fetch and display GitHub repository info. Prior to version 1.0.1, the `RepoCard` component is vulnerable to Reflected Cross-Site Scripting (XSS). The vulnerability occurs because the component uses React's `dangerouslySetInnerHTML` to render the repository name (`repo` prop) during the loading state without any sanitization. If a developer using this package passes unvalidated user input directly into the `repo` prop (for example, reading it from a URL query parameter), an attacker can execute arbitrary JavaScript in the context of the user's browser. In version 1.0.1, the use of dangerouslySetInnerHTML has been removed, and the repo prop is now safely rendered using standard React JSX data binding, which automatically escapes HTML entities.

NVD Source

Technical Analysis

CVE-2026-27612 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

A proof-of-concept (PoC) exploit exists for CVE-2026-27612. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.