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CVE-2025-66420

Tryton sao allows XSS via an HTML attachment

5.4 MediumFix available

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

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 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
CVE-2025-66420
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-2025-199921 5.4

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
EUVD-2025-199921
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-xhgv-99mj-8m2x 5.4

Tryton sao allows XSS via an HTML attachment

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
GHSA-xhgv-99mj-8m2x
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 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
CVE-2025-66420
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-2025-66420 5.4

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
DEBIAN-CVE-2025-66420
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-xhgv-99mj-8m2x 5.4

Tryton sao allows XSS via an HTML attachment

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
GHSA-xhgv-99mj-8m2x
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-2025-66420 5.4

Tryton sao (aka tryton-sao) before 7.6.9 allows XSS via an HTML attachment. This is fixed in 7.6.9, 7.4.19, 7.0.38, and 6.0.67.

Record
UBUNTU-CVE-2025-66420
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 7.6.9
7.6.9
tryton-sao
npm
 7.1.0 up to 7.4.19
7.4.19
tryton-sao
npm
 7.0.0 up to 7.0.38
7.0.38
tryton-sao
npm
 before 6.0.67
6.0.67
tryton-sao
Debian:12
 before 6.0.28+ds1-2+deb12u1, plus listed versions
6.0.28+ds1-2
6.0.28+ds1-2+deb12u1
tryton-sao
Debian:13
 before 7.0.28+ds1-1+deb13u1, plus listed versions
7.0.28+ds1-1
7.0.28+ds1-1+deb13u1
tryton-sao
Debian:14
 before 7.0.38+ds1-1, plus listed versions
7.0.28+ds1-1
7.0.38+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-2025-66420 is a medium vulnerability (CVSS 5.4) in Tryton Sao, published October 23, 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 7.6.9.

References

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