CVE-2025-70844: yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS)

Routine

MEDIUM 6.1DOWNGRADE

CVE-2025-70844 is a medium-severity flaw (CVSS 6.1) affecting yaffa. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the "Add Account Group" function on the account-group page, allowing execution of arbitrary script in the context of users who view the affected page.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-04-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: kantorge

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

Am I affected?

Timeline

2026-04-07 17:16 UTCPublished CVE record published
2026-06-17 10:03 UTCUpdated Record last modified

kantorge yaffa DOWNGRADE

Affected: 2.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison yaffa sudo apt install yaffa=<VERSION_BEFORE_2.0.0> sudo apt-mark hold yaffa

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

dnf --showduplicates list yaffa sudo dnf downgrade yaffa-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add yaffa

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-2025-70844?

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

Is CVE-2025-70844 being exploited?

CVE-2025-70844 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-2025-70844 affect?

CVE-2025-70844 affects yaffa. Severity is medium (CVSS 6.1). yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the "Add Account Group" function on the account-group page, allowing execution of arbitrary script in the context of users who view t

How urgent is CVE-2025-70844?

Priority 26/100. No elevated risk signals yet.

References

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