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TI-2021-05809 Aliases CVE-2021-22948GHSA-27g5-f3jp-4f93

Cross-site scripting in https://github.com/revive-adserver/revive-adserver

Priority LOW 36CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · Low · None
Fix status
No fix listed

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

Summary

Vulnerability in the generation of session IDs in revive-adserver < 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account.

Why it matters now

EPSS 0.02714 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—https://github.com/revive-adserver/revive-adserverFixed version v5.3.0—No fix listedCNA
  • https://github.com/revive-adserver/revive-adserver Vendor— Affected Fixed version v5.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*before 5.3.0VulnerableRevive Adserver
cpe:2.3:a:revive-adserver:revive_adserver:5.3.0:rc1:*:*:*:*:*:*5.3.0 rc1VulnerableRevive Adserver
  • cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:* Versions before 5.3.0 Vulnerable ·Revive Adserver
  • cpe:2.3:a:revive-adserver:revive_adserver:5.3.0:rc1:*:*:*:*:*:* Versions 5.3.0 rc1 Vulnerable ·Revive Adserver

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-22948
  2. 2026-10-03 Alias added: GHSA-27g5-f3jp-4f93

References

  • TI-2025-31114 Improper access control in Revive Adserver CVSS 3.0HIGH 8.8
  • TI-2020-06561 Open redirect in https://github.com/revive-adserver/revive-adserver CVSS 3.1MEDIUM 6.1
  • TI-2021-05734 Open redirect in https://github.com/revive-adserver/revive-adserver CVSS 3.1MEDIUM 6.1
  • TI-2025-32749 Missing authorization in Revive Adserver CVSS 3.1MEDIUM 6.5
  • TI-2025-34808 Improper neutralisation of input in Revive Adserver 6.0.0+ causes a reflected XSS attack in the banner-zone.php script. CVSS 3.0MEDIUM 6.1
  • TI-2025-32747 Cross-site scripting in Revive Adserver CVSS 3.1MEDIUM 5.4
See all 65 →

Sources