6.1

CVE-2021-21079: adobe connect Cross-site Scripting

CVSS: 6.1v3.0MediumModified
Published 12-03-2021Last modified 23-04-2025
Open JSON

Vulnerability summary

CVE-2021-21079 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in adobe connect. EPSS estimates a 1.12% chance of exploitation in the next 30 days, higher than 65.6% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.0 (CVE.org)
EPSS score
1.12%
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. 12-03-2021
    PublishedVulnerability first disclosed.
  2. 23-04-2025
    Last modifiedVulnerability information updated.

Description

Adobe Connect version 11.0.7 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious JavaScript content that may be executed within the context of the victim's browser when they browse to the page containing the vulnerable field.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

1.12%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

0.00 pp

From 1.13% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.12%

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

Adobe1 product
  • connect≥ unspecified, ≤ 11.0.7 | ≥ unspecified, ≤ None | ≤ 11.0.7

1 vendor · 1 product

References

1 links