CVE-2015-2793: Cross-site scripting (XSS) vulnerability in templates/openid-selector.tmpl in ikiwiki before 3.20150329 allows

Q: How do I fix CVE-2015-2793?

ikiwiki: upgrade to 3.20150329; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2015-2793 being exploited?

CVE-2015-2793 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-2793 affect?

CVE-2015-2793 affects ikiwiki, fedora. Severity is medium (CVSS 6.1). Cross-site scripting (XSS) vulnerability in templates/openid-selector.tmpl in ikiwiki before 3.20150329 allows remote attackers to inject arbitrary web script or HTML via the openid_identifier parameter in a verify action to ikiwiki.cgi.

Q: How urgent is CVE-2015-2793?

Priority 51/100. Public exploit reference; On your watchlist

This month

MEDIUM 6.1WATCHLISTUPGRADEMITIGATE

CVE-2015-2793 is a medium-severity flaw (CVSS 6.1) affecting ikiwiki, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in templates/openid-selector.tmpl in ikiwiki before 3.20150329 allows remote attackers to inject arbitrary web script or HTML via the openid_identifier parameter in a verify action to ikiwiki.cgi.

Why this priority

Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-11-21
Last modified	2026-06-17

Publisher (CNA): Debian GNU/Linux · Vendor: fedoraproject · ikiwiki

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

Am I affected?

Timeline

2019-11-21 20:15 UTCPublished CVE record published
2026-06-17 00:24 UTCUpdated Record last modified

ikiwiki ikiwiki UPGRADE

Affected: < 3.20150329

Fixed in: 3.20150329

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.20150329 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ikiwiki

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ikiwiki

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 20 · 21 · 22

Fixed in: no fixed release known

Safe to downgrade to: a release before 20

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2015-2793?

ikiwiki: upgrade to 3.20150329; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-2793 being exploited?

CVE-2015-2793 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-2015-2793 affect?

CVE-2015-2793 affects ikiwiki, fedora. Severity is medium (CVSS 6.1). Cross-site scripting (XSS) vulnerability in templates/openid-selector.tmpl in ikiwiki before 3.20150329 allows remote attackers to inject arbitrary web script or HTML via the openid_identifier parameter in a verify action to ikiwiki.cgi.

How urgent is CVE-2015-2793?

Priority 51/100. Public exploit reference; On your watchlist

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References

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