CVE-2017-15215

Reflected XSS vulnerability in Shaarli v0.9.1 allows an unauthenticated attacker to inject JavaScript via the searchtags parameter to index.php. If the victim is an administrator, an attacker can (for example) take over the admin session or change global settings or add/delete links. It is also possible to execute JavaScript against unauthenticated users.

Published: 2017-10-11 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2017-15215 is rated Moderate Risk (49.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.49%). Mandatory action: Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2017-15215

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 1.04% 1.49% +0.45%
2 2025-03-30 0.84% 1.04% +0.20%
3 2025-03-29 0.84%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-15215

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.0 MEDIUM
CVSS:3.0/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-2017-15215

OS Trackers for CVE-2017-15215

vendor priority summary link
debian unimportant CVE-2017-15215 unimportant priority: Debian including 1 source packages (shaarli), 3 status rows across 3 suites (bookworm, sid, trixie): resolved 3. https://security-tracker.debian.org/tracker/CVE-2017-15215
ubuntu medium CVE-2017-15215 medium priority: Ubuntu including 1 source packages (shaarli), 8 status rows across 8 suites (artful, bionic, cosmic, disco, trusty, upstream, xenial, zesty): DNE 6, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2017-15215

Affected software / configurations for CVE-2017-15215

Vendor Product Version Raw CPE
shaarli_project shaarli 0.9.1 cpe:2.3:a:shaarli_project:shaarli:0.9.1:*:*:*:*:*:*:*

References for CVE-2017-15215

URL Tags
http://openwall.com/lists/oss-security/2017/10/07/2 Mailing List Patch Third Party Advisory VDB Entry
https://github.com/shaarli/Shaarli/pull/987 Third Party Advisory
https://github.com/shaarli/Shaarli/releases/tag/v0.9.2 Release Notes Third Party Advisory
cvelogic Threat Intelligence