CVE-2025-54236KEV · OVERDUECWE-20

Adobe Commerce | Improper Input Validation (CWE-20)

Critical · published September 9, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.1. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.

344
days past CISA
deadline
CVSS v3.1
9.1
EPSS
95%
Percentile
99.9
In the wild
Confirmed
What it is

🚨 A crafty attacker can take over your session with a quick exploit! That's right—an Improper Input Validation vulnerability in Adobe Commerce could let someone hijack your account without any user interaction. 🔥 Think of it like a delivery service that doesn't check the recipient's ID. Anyone could swoop in, sign for the package, and make off with your valuable goods—like accessing your confidential data and altering it without a trace! This vulnerability poses a serious threat: an attacker could gain unauthorized access to user sessions, leading to a potential breach of sensitive information and a significant compromise of data integrity. Imagine a burglar walking right into your house while you're away, rearranging everything without you even knowing!

Put simply

Think of it like a delivery service that doesn't check the recipient's ID. Anyone could swoop in, sign for the package, and make off with your valuable goods—like accessing your confidential data and altering it without a trace! This flaw in Adobe Commerce allows an improper validation of user input, enabling attackers to exploit it to take over user sessions without needing any prior access or interaction.

What to do

This vulnerability poses a serious threat: an attacker could gain unauthorized access to user sessions, leading to a potential breach of sensitive information and a significant compromise of data integrity. Imagine a burglar walking right into your house while you're away, rearranging everything without you even knowing! To mitigate this risk, promptly update Adobe Commerce to the latest secure version: 2.4.9 or later. Additionally, audit your security settings to ensure proper input validation is implemented across all user inputs. Don't forget to monitor your logs for any suspicious activity! You've got this! With these steps, you'll be back in control of your security in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.94660 · 99.9th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2025-09-09T13:20Z
KEV added
2025-10-24 · due 2025-11-14
EPSS history
Timeline
  • 24 OCT 00:00Z
    Added to CISA KEV — remediate by Nov 14
    kev
  • 09 SEP 13:20Z
    Adobe Commerce | Improper Input Validation (CWE-20)
    cvelistv5