CVE-2022-37257

Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the requestedVersion variable in npm-convert.js

published September 15, 2022

CVSS
โ€”
EPSS
1%
Percentile
71.8
In the wild
Unconfirmed
What it is

โš ๏ธ A clever little prototype pollution vulnerability could sneak in through the `requestedVersion` variable in `npm-convert.js` in stealjs 2.2.4. ๐Ÿค“ Think of it like a recipe book where a chef can sneak in a note to change the ingredient quantities without anyone noticing โ€” it alters the final dish without proper oversight. In this case, a malicious actor could modify the properties of existing objects, potentially leading to unexpected behaviors in your application. If exploited, this vulnerability could allow an attacker to tamper with application behavior or data structures, leading to unpredictable outcomes or even security breaches. While it's not actively being exploited, the risk is there if it goes unchecked.

Put simply

Think of it like a recipe book where a chef can sneak in a note to change the ingredient quantities without anyone noticing โ€” it alters the final dish without proper oversight. In this case, a malicious actor could modify the properties of existing objects, potentially leading to unexpected behaviors in your application. This prototype pollution flaw in the `convertLater` function allows attackers to manipulate object prototypes by injecting malicious data through the `requestedVersion` variable, impacting how the application handles data.

What to do

If exploited, this vulnerability could allow an attacker to tamper with application behavior or data structures, leading to unpredictable outcomes or even security breaches. While it's not actively being exploited, the risk is there if it goes unchecked. To mitigate this vulnerability, upgrade to a patched version of stealjs or ensure that input validation and sanitation are in place for the `requestedVersion` variable. Regularly audit your dependencies to stay ahead of potential vulnerabilities. You've got this! Stay vigilant and keep your applications secure with these steps. ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01373 ยท 71.8th percentile
Published
2022-09-15T12:30Z
EPSS history
Timeline
  • 15 SEP 12:30Z
    Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the requestedVersion variable in npm-convert.js
    cvelistv5