5.4

CVE-2020-18671: roundcube webmail Cross-site Scripting

CVSS: 5.4v3.1MediumModified
AliasesUBUNTU-CVE-2020-18671DEBIAN-CVE-2020-18671
Published 24-06-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-18671 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in roundcube webmail. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (NVD)
EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
OPENSUSE-SU-2021:0931-1OPENSUSE-SU-2021:0942-1OPENSUSE-SU-2021:0943-1OPENSUSE-SU-2021:0959-1OPENSUSE-SU-2021:0974-1OPENSUSE-SU-2021:1014-1

Timeline

  1. 24-06-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Cross Site Scripting (XSS) vulnerability in Roundcube Mail <=1.4.4 via smtp config in /installer/test.php.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.81%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

0.00 pp

From 0.81% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (lorexxar.cn)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • roundcube< 1.4.5+dfsg.1-1
Roundcube1 product
Ubuntu1 product
  • roundcube< 1.2~beta+dfsg.1-0ubuntu1+esm3 | < 1.3.6+dfsg.1-1ubuntu0.1~esm3 | < 1.4.3+dfsg.1-1ubuntu0.1~esm3 | < 1.5.0+dfsg.1-2

3 vendors · 3 products

References

6 links