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CVE-2025-66421

Tryton sao allows XSS because it does not escape completion values

5.4 MediumFix available

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.18%Up 0.2 points since Nov 30, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.4

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
CVE-2025-66421
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2025-199920 5.4

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
EUVD-2025-199920
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-6qj9-2g9m-29x9 5.4

Tryton sao allows XSS because it does not escape completion values

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
GHSA-6qj9-2g9m-29x9
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 5.4

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
CVE-2025-66421
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVDEBIAN-CVE-2025-66421 5.4

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
DEBIAN-CVE-2025-66421
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVGHSA-6qj9-2g9m-29x9 5.4

Tryton sao allows XSS because it does not escape completion values

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
GHSA-6qj9-2g9m-29x9
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVUBUNTU-CVE-2025-66421 5.4

Tryton sao (aka tryton-sao) before 7.6.11 allows XSS because it does not escape completion values. This is fixed in 7.6.11, 7.4.21, 7.0.40, and 6.0.69.

Record
UBUNTU-CVE-2025-66421
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
tryton-sao
npm
 7.5.0 up to 7.6.11
7.6.11
tryton-sao
npm
 7.1.0 up to 7.4.21
7.4.21
tryton-sao
npm
 7.0.0 up to 7.0.40
7.0.40
tryton-sao
npm
 before 6.0.69
6.0.69
tryton-sao
Debian:12
 before 6.0.28+ds1-2+deb12u2, plus listed versions
6.0.28+ds1-26.0.28+ds1-2+deb12u1
6.0.28+ds1-2+deb12u2
tryton-sao
Debian:13
 before 7.0.28+ds1-1+deb13u2, plus listed versions
7.0.28+ds1-17.0.28+ds1-1+deb13u1
7.0.28+ds1-1+deb13u2
tryton-sao
Debian:14
 before 7.0.40+ds1-1, plus listed versions
7.0.28+ds1-17.0.38+ds1-1
7.0.40+ds1-1
tryton-sao
Ubuntu:24.04:LTS
 All versions, plus listed versions
6.0.30+ds1-16.0.31+ds1-1
 None known
tryton-sao
Ubuntu:25.10
 All versions, plus listed versions
7.0.23+ds1-17.0.28+ds1-1
 None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-66421 is a medium vulnerability (CVSS 5.4) in Tryton Sao, published November 25, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. Fixed in tryton-sao 7.6.11.

References

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