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CVE-2023-2876

Session cookie exposure for client side script

MEDIUM
6.1
CVSS Score
Published: June 13, 2023 at 03:52 AM UTC
Updated: June 17, 2026 at 05:53 AM UTC
6 products affected across 1 vendorREX640 PCL2 FirmwareREX640 PCL1 FirmwareREX640 PCL3 Firmware

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

REX640 PCL1 Firmware· ABB
95%
1.0.0 ≤ v < 1.0.8
Affected range stops below 1.0.8, so it looks safe — our inference, not a vendor statement
abb-rex640-pcl1 (same device)
REX640 PCL2 Firmware· ABB
95%
1.0.0 ≤ v < 1.1.4
Affected range stops below 1.1.4, so it looks safe — our inference, not a vendor statement
abb-rex640-pcl2 (same device)
REX640 PCL3 Firmware· ABB
95%
1.0.0 ≤ v < 1.2.1
Affected range stops below 1.2.1, so it looks safe — our inference, not a vendor statement
abb-rex640-pcl3 (same device)
REX640 PCL1· ABB
60%
1.0;0 ≤ v < 1.0.81.0;0
Affected range stops below 1.0.8, so it looks safe — our inference, not a vendor statement
REX640 PCL2· ABB
60%
1.0;0 ≤ v < 1.1.41.0;0
Affected range stops below 1.1.4, so it looks safe — our inference, not a vendor statement
REX640 PCL3· ABB
60%
1.0;0 ≤ v < 1.2.11.0;0
Affected range stops below 1.2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://search.abb.com/library/Download.aspx?DocumentID=2NGA001423&LanguageCode=en&DocumentPartId=&Action=Launch

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1004CWE-732

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