CVE-2015-1864: Multiple cross-site scripting (XSS) vulnerabilities in the administration pages in Kallithea before 0.2.1 allo

Routine

MEDIUM 5.4DOWNGRADE

CVE-2015-1864 is a medium-severity flaw (CVSS 5.4) affecting kallithea. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in the administration pages in Kallithea before 0.2.1 allow remote attackers to inject arbitrary web script or HTML via the (1) first name or (2) last name user details, or the (3) repository, (4) repository group, or (5) user group description.

Why this priority

Public exploit reference

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	1.0% (top 39%)
CISA exploited list	No
Weakness	CWE-79
Published	2017-09-19
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: kallithea-scm

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

Am I affected?

Timeline

2017-09-19 15:29 UTCPublished CVE record published
2026-06-17 00:23 UTCUpdated Record last modified

kallithea-scm kallithea DOWNGRADE

Affected: 0.1 · 0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison kallithea sudo apt install kallithea=<VERSION_BEFORE_0.1> sudo apt-mark hold kallithea

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

dnf --showduplicates list kallithea sudo dnf downgrade kallithea-<VERSION_BEFORE_0.1> sudo dnf versionlock add kallithea

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-2015-1864?

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

Is CVE-2015-1864 being exploited?

CVE-2015-1864 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-2015-1864 affect?

CVE-2015-1864 affects kallithea. Severity is medium (CVSS 5.4). Multiple cross-site scripting (XSS) vulnerabilities in the administration pages in Kallithea before 0.2.1 allow remote attackers to inject arbitrary web script or HTML via the (1) first name or (2) last name user details, or the (3) reposit

How urgent is CVE-2015-1864?

Priority 39/100. Public exploit reference

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CVE-2015-0260 MEDIUM 4.0 DOWNGRADE UPGRADE RhodeCode before 2.2.7 and Kallithea 0.1 allows remote authenticated users to obtain API keys and other sensit

References

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