CVE-2025-6700: A vulnerability classified as problematic was found in Xuxueli xxl-sso 1.1.0

Routine

MEDIUM 4.3DOWNGRADE

CVE-2025-6700 is a medium-severity flaw (CVSS 4.3) affecting xxl-sso. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as problematic was found in Xuxueli xxl-sso 1.1.0. This vulnerability affects unknown code of the file /xxl-sso-server/login. The manipulation of the argument errorMsg leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-06-26
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: xuxueli

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-26 16:15 UTCPublished CVE record published
2026-06-17 10:02 UTCUpdated Record last modified

xuxueli xxl-sso DOWNGRADE

Affected: 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.0

1. Check installed version

apt-cache policy xxl-sso || rpm -q xxl-sso || xxl-sso --version

2. No fixed release: DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison xxl-sso sudo apt install xxl-sso=<VERSION_BEFORE_1.1.0> sudo apt-mark hold xxl-sso

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

dnf --showduplicates list xxl-sso sudo dnf downgrade xxl-sso-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add xxl-sso

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-2025-6700?

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

Is CVE-2025-6700 being exploited?

CVE-2025-6700 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-2025-6700 affect?

CVE-2025-6700 affects xxl-sso. Severity is medium (CVSS 4.3). A vulnerability classified as problematic was found in Xuxueli xxl-sso 1.1.0. This vulnerability affects unknown code of the file /xxl-sso-server/login. The manipulation of the argument errorMsg leads to cross site scripting. The attack can

How urgent is CVE-2025-6700?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2025-6701 LOW 3.5 DOWNGRADE A vulnerability, which was classified as problematic, has been found in Xuxueli xxl-sso 1.1.0

References

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