6.5

CVE-2021-32676: nextcloud security-advisories Session Fixation

CVSS: 6.5v3.1MediumModified
Published 16-06-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-32676 is a medium (CVSS 6.5) Session Fixation vulnerability in nextcloud security-advisories. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.6% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-06-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nextcloud2 products
  • security-advisories< 9.0.10 | ≥ 10.0.0, < 10.0.8 | ≥ 11.0.0, < 11.2.2
  • talk< 9.0.10 | ≥ 10.0.0, < 10.0.8 | ≥ 11.2.0, < 11.2.2

1 vendor · 2 products

References

2 links