6.5

CVE-2021-37631: nextcloud deck

CVSS: 6.5v3.1MediumModified
Published 07-09-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-37631 is a medium (CVSS 6.5) vulnerability in nextcloud deck. EPSS estimates a 1.28% chance of exploitation in the next 30 days, higher than 69.5% 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
1.28%
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. 07-09-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Deck is an open source kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. In affected versions the Deck application didn't properly check membership of users in a Circle. This allowed other users in the instance to gain access to boards that have been shared with a Circle, even if the user was not a member of the circle. It is recommended that Nextcloud Deck is upgraded to 1.5.1, 1.4.4 or 1.2.9. If you are unable to update it is advised to disable the Deck plugin.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.28%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

0.00 pp

From 1.28% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.28%

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
  • deck< 1.2.9 | ≥ 1.3.0, < 1.4.4 | ≥ 1.5.0, < 1.5.1
  • security-advisories< 1.2.9 | ≥ 1.3.0, < 1.4.4 | ≥ 1.5.0, < 1.5.1

1 vendor · 2 products

References

4 links