CVE-2021-23038CWE-79

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site…

published September 14, 2021

CVSS
—
EPSS
1%
Percentile
59.8
In the wild
Unconfirmed
What it is

⚠️ A stored XSS vulnerability in the BIG-IP Configuration utility could let an attacker run JavaScript as the logged-in user—like a sneaky chef swapping ingredients without anyone noticing! Think of it as a restaurant where the chef secretly adds mystery ingredients to a dish you ordered. You may not notice it right away, but now that dish can cause unexpected reactions, especially if someone else takes a bite! The implications can be serious: an attacker could execute malicious scripts, access sensitive user data, or even manipulate the user's session—creating chaos without the user's knowledge. While there's no known exploitation yet, the potential for damage is absolutely mind-blowing!

Put simply

Think of it as a restaurant where the chef secretly adds mystery ingredients to a dish you ordered. You may not notice it right away, but now that dish can cause unexpected reactions, especially if someone else takes a bite! This vulnerability allows attackers to inject JavaScript into an undisclosed page of the BIG-IP Configuration utility. If successful, attackers can execute their scripts in the context of logged-in users, potentially accessing sensitive information.

What to do

The implications can be serious: an attacker could execute malicious scripts, access sensitive user data, or even manipulate the user's session—creating chaos without the user's knowledge. While there's no known exploitation yet, the potential for damage is absolutely mind-blowing! To mitigate this risk, upgrade to versions 16.0.1.2, 15.1.3.1, 14.1.4.2, or 13.1.4.1, depending on your current version. If you're still on 12.1.x, immediate action is required! Don't forget to review your security policies and user permissions to ensure everything is as secure as possible. 🛡️ You've got this! Stay vigilant and follow these steps to keep your systems safe and sound! 🌟

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00916 · 59.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-09-14T17:26Z
EPSS history
Timeline
  • 14 SEP 17:26Z
    On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a stored cross-site…
    cvelistv5