Insecure serialization leading to RCE in serialize-javascript

Description

serialize-javascript prior to 3.1.0 allows remote attackers to inject arbitrary code via the function “deleteFunctions” within “index.js”.

An object such as {"foo": /1"/, "bar": "a\"@__R-<UID>-0__@"} was serialized as {"foo": /1"/, "bar": "a\/1"/}, which allows an attacker to escape the bar key.

Recommendation

Update the serialize-javascript package to the latest compatible version. Followings are version details:

• Affected version(s): < 3.1.0
• Patched version(s): 3.1.0

References

• GHSA-hxcc-f52p-wc94
• CVE-2020-7660
• CWE-502
• CAPEC-310
• OWASP 2021-A6
• OWASP 2021-A8

Related Issues

• Cross-site Scripting (XSS) in serialize-javascript - CVE-2024-11831
• Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects - CVE-2026-34043
• Cross-Site Scripting in serialize-javascript - CVE-2019-16769
• Serialize JavaScript is Vulnerable to RCE via RegExp.flags and Date.prototype.toISOString() - Vulnerability

Tags:

npm

serialize-javascript