6.4

CVE-2021-23927: open-xchange open-xchange_appsuite Server-Side Request Forgery (SSRF)

CVSS: 6.4v3.1MediumModified
Published 12-01-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-23927 is a medium (CVSS 6.4) Server-Side Request Forgery (SSRF) vulnerability in open-xchange open-xchange_appsuite. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 55% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.4/10
010
Medium · v3.1 (NVD)
EPSS score
0.77%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-01-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

OX App Suite through 7.10.4 allows SSRF via a URL with an @ character in an appsuite/api/oauth/proxy PUT request.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.77%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.01 pp

From 0.76% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.77%

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

Open-xchange1 product

1 vendor · 1 product

References

1 links