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Fencer Vulns
medium 6.1

CVE-2021-22888 json

Revive Adserver before v5.2.0 is vulnerable to a reflected XSS vulnerability in the `status` parameter of campaign-zone-zones.php.

published 2021-03-25 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10020

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
16.3%
EPSS 16.3% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Revive Adserver before v5.2.0 is vulnerable to a reflected XSS vulnerability in the `status` parameter of campaign-zone-zones.php. An attacker could trick a user with access to the user interface of a Revive Adserver instance into clicking on a specifically crafted URL and execute injected JavaScript code.

Patch / fix

  • revive-adserver revive_adserver 5.2.0

Exploit prediction

16.35% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/1097979 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • n/a https://github.com/revive-adserver/revive-adserver

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.