IPFire 2.21 Core Update 127 Stored XSS via extrahd.cgi
Published Feb 18, 2026
5.1
MEDIUMCVSS 4.0
EPSS 0.24%
Description
IPFire 2.21 Core Update 127 contains multiple stored cross-site scripting vulnerabilities in the extrahd.cgi script that allow attackers to inject malicious scripts through the FS, PATH, and UUID parameters. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated administrator sessions.
Affected products
-
- Version IPFire 2.21 - Core Update 127StatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Feb 19, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Feb–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.24% (0.00241) | 13.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.23% (0.00232) | 13.81th | v5 (v2026.06.15) |
| Feb 19, 2026 | 0.03% (0.00030) | 8.69th | v4 (v2025.03.14) |
References (4)
- https://downloads.ipfire.org/releases/ipfire-2.x/2.21-core127/ipfire-2.21.x86_64-full-core127.iso patchProduct
- https://www.exploit-db.com/exploits/46344 exploitThird Party AdvisoryVDB Entry
- https://www.ipfire.org product
- https://www.vulncheck.com/advisories/ipfire-core-update-stored-xss-via-extrahdcgi third-party-advisoryBroken LinkThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://downloads.ipfire.org/releases/ipfire-2.x/2.21-core127/ipfire-2.21.x86_64-full-core127.iso | patchProduct | |
| https://www.exploit-db.com/exploits/46344 | exploitThird Party AdvisoryVDB Entry | |
| https://www.ipfire.org | product | |
| https://www.vulncheck.com/advisories/ipfire-core-update-stored-xss-via-extrahdcgi | third-party-advisoryBroken LinkThird Party Advisory |
Change history (0)
No recorded changes yet.