CVE-2021-42551

Reflected XSS in NetBiblio WebOPAC search functionality

MEDIUM
6.1
CVSS Score
Published: January 14, 2022 at 09:52 AM UTC
Updated: June 17, 2026 at 04:09 AM UTC
1 product affected across 1 vendorNetbiblio

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Severity
MEDIUM6.1
Exploit prediction
EPSS 3%

Description

Cross-site Scripting (XSS) vulnerability in the search functionality of AlCoda NetBiblio WebOPAC allows an unauthenticated user to craft a reflected Cross-Site Scripting attack. This issue affects: AlCoda NetBiblio WebOPAC versions prior to 4.0.0.320; versions later than 4.0.0.328. This issue does not affect: AlCoda NetBiblio WebOPAC version 4.0.0.335 and later versions.

Affected

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

v ≥ next of 4.0.0.328v < 4.0.0.3204.0.0.328 ≤ v < 4.0.0.335next of 4.0.0.328
Affected range stops below 4.0.0.320, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 4.0.0.335 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMExploitThird Party Advisory
https://www.redguard.ch/advisories/netbiblio_webopac.txt

CVSS

6.1MEDIUMNCSC.ch
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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