CVE-2015-2793

Exp

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.

Published: 2019-11-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-2793 is rated High Exploit Risk (65.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.69%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-2793

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-2793

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.29% 1.69% +0.40%
2 2025-04-05 1.54% 1.29% -0.25%
3 2025-03-30 — 1.54% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-2793

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-2793

OS Trackers for CVE-2015-2793

vendor priority summary link
debian not yet assigned CVE-2015-2793 not yet assigned priority: Debian including 1 source packages (ikiwiki), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-2793
ubuntu medium CVE-2015-2793 medium priority: Ubuntu including 1 source packages (ikiwiki), 14 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 9, ignored 3, DNE 1, released 1. https://ubuntu.com/security/CVE-2015-2793

Affected software / configurations for CVE-2015-2793

Vendor Product Version Raw CPE
ikiwiki ikiwiki < 3.20150329 cpe:2.3:a:ikiwiki:ikiwiki:*:*:*:*:*:*:*:*
fedoraproject fedora 20 cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
fedoraproject fedora 21 cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
fedoraproject fedora 22 cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*

References for CVE-2015-2793

URL Tags
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157001.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157023.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157025.html Third Party Advisory
http://openwall.com/lists/oss-security/2015/03/30/5 Mailing List Patch Third Party Advisory
http://openwall.com/lists/oss-security/2015/03/31/1 Mailing List Patch Third Party Advisory
http://source.ikiwiki.branchable.com/?p=source.git%3Ba=commitdiff%3Bh=18dfba868fe2fb9c64706b2123eb0b3a3ce66a77
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781483 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1207210 Issue Tracking Patch Third Party Advisory
https://ikiwiki.info/bugs/XSS_Alert...__33____33____33__/ Exploit Vendor Advisory
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