TI-2021-12517 Aliases CVE-2021-32852 GHSA-7pfv-9vwr-6hpx

countly-server vulnerable to Cross-site Scripting

HIGH 72CWE-79Published 2023-02-20 · Updated 2025-03-10

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

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

Summary

Countly, a product analytics solution, is vulnerable to cross-site scripting prior to version 21.11 of the community edition. The victim must follow a malicious link or be redirected there from malicious web site. The attacker must have an account or be able to create one. This issue is patched in version 21.11.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0093 60th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed countly-server (Countly): 21.11

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Countly	countly-server	21.11 to before 21.11	21.11	Patch available	CNA

countly-server VendorCountly Affected 21.11 to before 21.11 Fixed in 21.11 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:count:countly_server:::::community:::*	before 21.11	Vulnerable	Count

cpe:2.3:a:count:countly_server:*:*:*:*:community:*:*:* Versions before 21.11 Vulnerable ·Count

Remediation

Fix · CNA countly-server (Countly) Fixed in 21.11

Timeline

2026-10-02 Threatist record created from CVE-2021-32852
2026-10-03 Alias added: GHSA-7pfv-9vwr-6hpx

References

Exploit 1

https://securitylab.github.com/advisories/GHSL-2021-104-countly-server/

Advisory 2

Other 1

https://github.com/Countly/countly-server/releases/tag/v21.11

TI-2026-75341 Stored XSS in countly-server feedback upload exposes global admin session CVSS 3.1CRITICAL 9.0
TI-2026-75340 Unauthenticated denial of service in countly-server image routes CVSS 3.1HIGH 7.5
TI-2026-75338 Path traversal in countly-server exposes arbitrary server files CVSS 3.1HIGH 7.5
TI-2026-75339 Path traversal in countly-server lets users delete files CVSS 3.1HIGH 8.1
TI-2026-59922 Incorrect authorization in countly-server CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences