CVE-2026-21269
MEDIUM 4.6is affected by a stored Cross-Site Scripting (XSS) vulnerability that could be abused by a low-privileged attacker to inject malicious scripts into vulnerable form fields. Malicious JavaScript may be executed in a victim's browser when they browse to the page containing the vulnerable field. Scope is changed.
NO EXPLOITATION SIGNALS
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.3%chance of exploitation in 30 days · 19th percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
4.6CVSS 3.1 · MEDIUM
- ConfidentialityLow
- IntegrityLow
- AvailabilityNone
What an attacker needs
- ⚠Access: Requires local access to the host
- ⚠Privileges: Requires a low-privilege account
- ⚠User interaction: A user must take an action (click / open a file)
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-21269/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-21269/poc.json
Weakness (CWE)
- CWE-79: Cross-site Scripting (Stored XSS) (CWE-79)
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2023 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
| Adobe | Coldfusion | 2025 |
All CVSS metrics
- MEDIUM 4.6 v3.1 · CNA Primary
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - MEDIUM 4.6 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - MEDIUM 5.4 v3.1 · NVD Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N