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TI-2021-18836 Aliases CVE-2021-42551GHSA-hrpc-fm5f-rg4v

Reflected XSS in NetBiblio WebOPAC search functionality

Priority LOW 32CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.02714 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed NetBiblio WebOPAC (AlCoda): 4.0.0.320, 4.0.0.335

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AlCodaNetBiblio WebOPACbefore 4.0.0.320; next of 4.0.0.328 and later4.0.0.320, 4.0.0.335Patch availableCNA
  • NetBiblio WebOPAC VendorAlCoda Affected before 4.0.0.320; next of 4.0.0.328 and later Fixed in 4.0.0.320, 4.0.0.335 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:alcoda:netbiblio:*:*:*:*:*:*:*:*before 4.0.0.320; 4.0.0.328 to before 4.0.0.335VulnerableAlCoda
  • cpe:2.3:a:alcoda:netbiblio:*:*:*:*:*:*:*:* Versions before 4.0.0.320; 4.0.0.328 to before 4.0.0.335 Vulnerable ·AlCoda

Remediation

  • Fix · CNA NetBiblio WebOPAC (AlCoda) Fixed in 4.0.0.320, 4.0.0.335

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42551
  2. 2026-10-03 Alias added: GHSA-hrpc-fm5f-rg4v

References

Sources