Is CVE-2023-26133 actively exploited?

No active exploitation of CVE-2023-26133 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-26133 be exploited remotely?

Yes. CVE-2023-26133 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-26133?

CVE-2023-26133 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-26133

CRITICAL

CVE-2023-26133

CWE-1321Published: June 12, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

All versions of the package progressbar.js are vulnerable to Prototype Pollution via the function extend() in the file utils.js.

NVD Source

Risk Analysis

The progressbar.js package is vulnerable to prototype pollution via the extend function. This flaw allows an attacker to manipulate object prototypes, potentially leading to full system compromise, and is rated as critical due to its high CVSS score.

There is no known public exploit for this vulnerability, and it is not currently listed in CISA's KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Users should update to a patched version of progressbar.js if available and monitor the project repository for security advisories.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-26133 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.