CVE-2025-41349: Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist o

Routine

MEDIUM 5.4DOWNGRADE

CVE-2025-41349 is a medium-severity flaw (CVSS 5.4) affecting winplus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist of an stored XSS of a stored XSS due to a lack of proper validation of user input by sending a POST request using the 'descripcion' parameter in '/WinplusPortal/ws/sWinplus. svc/json/savesolpla_post'. This vulnerability could allow a remote user to send a specially crafted query to an authenticated user and steal their cookie session detai

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-11-18
Last modified	2026-10-18

Publisher (CNA): Spanish National Cybersecurity Institute, S.A. (INCIBE) · Vendor: iest

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-18 12:15 UTCPublished CVE record published
2026-10-18 20:10 UTCUpdated Record last modified

iest winplus DOWNGRADE

Affected: 24.11.27

Fixed in: no fixed release known

Safe to downgrade to: a release before 24.11.27

1. Check installed version

apt-cache policy winplus || rpm -q winplus || winplus --version

2. No fixed release: DOWNGRADE to a release before 24.11.27 (Debian / Ubuntu)

apt-cache madison winplus sudo apt install winplus=<VERSION_BEFORE_24.11.27> sudo apt-mark hold winplus

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list winplus sudo dnf downgrade winplus-<VERSION_BEFORE_24.11.27> sudo dnf versionlock add winplus

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-41349?

winplus: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-41349 being exploited?

CVE-2025-41349 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-41349 affect?

CVE-2025-41349 affects winplus. Severity is medium (CVSS 5.4). Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist of an stored XSS of a stored XSS due to a lack of proper validation of user input by sending a POST request using the 'descripcion'

How urgent is CVE-2025-41349?

Priority 27/100. No elevated risk signals yet.

Related CVEs

CVE-2025-41348 CRITICAL 9.8 DOWNGRADE SQL injection vulnerability in WinPlus v24.11.27 by Informática del Este
CVE-2025-41347 CRITICAL 9.8 DOWNGRADE Unlimited upload vulnerability for dangerous file types in WinPlus v24.11.27 from Informática del Este
CVE-2025-41346 CRITICAL 9.8 DOWNGRADE Faulty authorization control in software WinPlus v24.11.27 by Informática del Este that allows another user to
CVE-2025-41350 MEDIUM 5.4 DOWNGRADE Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist o

References

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