Cross-site scripting in Adobe ColdFusion
Priority MEDIUM 51CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.37095 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Adobe | ColdFusion | up to 2016.16; up to 2018.10; up to 2021.0.0.323925; up to None | — | No fix listed | CNA |
- ColdFusion VendorAdobe Affected up to 2016.16; up to 2018.10; up to 2021.0.0.323925; up to None Fixed in — No fix listed CNA
CPE configurations NVD · 29
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:adobe:coldfusion:2016:-:*:*:*:*:*:* | 2016 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update1:*:*:*:*:*:* | 2016 update1 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update10:*:*:*:*:*:* | 2016 update10 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update11:*:*:*:*:*:* | 2016 update11 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update12:*:*:*:*:*:* | 2016 update12 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update13:*:*:*:*:*:* | 2016 update13 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update14:*:*:*:*:*:* | 2016 update14 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update15:*:*:*:*:*:* | 2016 update15 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update16:*:*:*:*:*:* | 2016 update16 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update2:*:*:*:*:*:* | 2016 update2 | Vulnerable | Adobe |
- cpe:2.3:a:adobe:coldfusion:2016:-:*:*:*:*:*:* Versions 2016 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update1:*:*:*:*:*:* Versions 2016 update1 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update10:*:*:*:*:*:* Versions 2016 update10 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update11:*:*:*:*:*:* Versions 2016 update11 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update12:*:*:*:*:*:* Versions 2016 update12 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update13:*:*:*:*:*:* Versions 2016 update13 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update14:*:*:*:*:*:* Versions 2016 update14 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update15:*:*:*:*:*:* Versions 2016 update15 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update16:*:*:*:*:*:* Versions 2016 update16 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update2:*:*:*:*:*:* Versions 2016 update2 Vulnerable ·Adobe
Show 19 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:adobe:coldfusion:2016:update3:*:*:*:*:*:* | 2016 update3 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update4:*:*:*:*:*:* | 2016 update4 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update5:*:*:*:*:*:* | 2016 update5 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update6:*:*:*:*:*:* | 2016 update6 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update7:*:*:*:*:*:* | 2016 update7 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update8:*:*:*:*:*:* | 2016 update8 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2016:update9:*:*:*:*:*:* | 2016 update9 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:-:*:*:*:*:*:* | 2018 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update1:*:*:*:*:*:* | 2018 update1 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update10:*:*:*:*:*:* | 2018 update10 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update2:*:*:*:*:*:* | 2018 update2 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update3:*:*:*:*:*:* | 2018 update3 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update4:*:*:*:*:*:* | 2018 update4 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update5:*:*:*:*:*:* | 2018 update5 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update6:*:*:*:*:*:* | 2018 update6 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update7:*:*:*:*:*:* | 2018 update7 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update8:*:*:*:*:*:* | 2018 update8 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2018:update9:*:*:*:*:*:* | 2018 update9 | Vulnerable | Adobe |
| cpe:2.3:a:adobe:coldfusion:2021.0.0.323925:*:*:*:*:*:*:* | 2021.0.0.323925 | Vulnerable | Adobe |
- cpe:2.3:a:adobe:coldfusion:2016:update3:*:*:*:*:*:* Versions 2016 update3 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update4:*:*:*:*:*:* Versions 2016 update4 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update5:*:*:*:*:*:* Versions 2016 update5 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update6:*:*:*:*:*:* Versions 2016 update6 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update7:*:*:*:*:*:* Versions 2016 update7 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update8:*:*:*:*:*:* Versions 2016 update8 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2016:update9:*:*:*:*:*:* Versions 2016 update9 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:-:*:*:*:*:*:* Versions 2018 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update1:*:*:*:*:*:* Versions 2018 update1 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update10:*:*:*:*:*:* Versions 2018 update10 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update2:*:*:*:*:*:* Versions 2018 update2 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update3:*:*:*:*:*:* Versions 2018 update3 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update4:*:*:*:*:*:* Versions 2018 update4 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update5:*:*:*:*:*:* Versions 2018 update5 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update6:*:*:*:*:*:* Versions 2018 update6 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update7:*:*:*:*:*:* Versions 2018 update7 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update8:*:*:*:*:*:* Versions 2018 update8 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2018:update9:*:*:*:*:*:* Versions 2018 update9 Vulnerable ·Adobe
- cpe:2.3:a:adobe:coldfusion:2021.0.0.323925:*:*:*:*:*:*:* Versions 2021.0.0.323925 Vulnerable ·Adobe
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21087
- 2026-10-03 Alias added: GHSA-9mx8-9vhh-5qr7
References
More Adobe Coldfusion vulnerabilities
- TI-2026-35688 ColdFusion | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) KEVCVSS 3.1CRITICAL 10.0
- TI-2023-19615 Analysis CVE-2023-29300 Bypass: Adobe ColdFusion Pre-Auth RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2023-13696 Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2023-11512 Adobe ColdFusion Improper Access Control Arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2023-11511 Adobe ColdFusion Deserialization of Untrusted Data Arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2018-11393 Unrestricted file upload in Adobe ColdFusion KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-21087 · CVE Program
- CVE-2021-21087 · NVD
- FIRST EPSS
- GHSA-9mx8-9vhh-5qr7 · GitHub Advisory Database · CC BY 4.0
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