CVE-2023-2876: Session cookie exposure for client side script

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-13 · updated 2026-06-17
Weakness: CWE-1004

Description

Sensitive Cookie Without 'HttpOnly' Flag vulnerability in ABB REX640 PCL1 (firmware modules), ABB REX640 PCL2 (Firmware modules), ABB REX640 PCL3 (firmware modules) allows Cross-Site Scripting (XSS).This issue affects REX640 PCL1: from 1.0;0 before 1.0.8; REX640 PCL2: from 1.0;0 before 1.1.4; REX640 PCL3: from 1.0;0 before 1.2.1.

Affected products

ABB Rex640 Pcl1 Firmware: from 1.0.0 before 1.0.8 — fixed in 1.0.8
ABB Rex640 Pcl2 Firmware: from 1.0.0 before 1.1.4 — fixed in 1.1.4
ABB Rex640 Pcl3 Firmware: from 1.0.0 before 1.2.1 — fixed in 1.2.1

How to fix

Upgrade to a fixed version: ABB Rex640 Pcl1 Firmware 1.0.8; ABB Rex640 Pcl2 Firmware 1.1.4; ABB Rex640 Pcl3 Firmware 1.2.1. Check the vendor advisory for mitigations.

References

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