5.4

CVE-2021-21087: adobe coldfusion Cross-site Scripting

CVSS: 5.4v3.0MediumModified
Published 15-04-2021Last modified 23-04-2025
Open JSON

Vulnerability summary

CVE-2021-21087 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in adobe coldfusion. EPSS estimates a 37.09% chance of exploitation in the next 30 days, higher than 98.5% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.0 (CVE.org)
EPSS score
37.09%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-04-2021
    PublishedVulnerability first disclosed.
  2. 23-04-2025
    Last modifiedVulnerability information updated.

Description

Adobe Coldfusion versions 2016 (update 16 and earlier), 2018 (update 10 and earlier) and 2021.0.0.323925 are affected by an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability. An attacker could abuse this vulnerability to execute arbitrary JavaScript code in context of the current user. Exploitation of this issue requires user interaction.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

37.09%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 37.09% on 20-09-2026

20-09-202620-10-2026
EPSS score
37.09%

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
  • coldfusionEOL≥ unspecified, ≤ 2016.16 | ≥ unspecified, ≤ 2018.10 | ≥ unspecified, ≤ 2021.0.0.323925 | ≥ unspecified, ≤ None | 2016 | 2016:update1 | 2016:update10 | 2016:update11 | 2016:update12 | 2016:update13 | 2016:update14 | 2016:update15 | 2016:update16 | 2016:update2 | 2016:update3 | 2016:update4 | 2016:update5 | 2016:update6 | 2016:update7 | 2016:update8 | 2016:update9 | 2018 | 2018:update1 | 2018:update10 | 2018:update2 | 2018:update3 | 2018:update4 | 2018:update5 | 2018:update6 | 2018:update7 | 2018:update8 | 2018:update9 | 2021.0.0.323925

1 vendor · 1 product

References

1 links