How severe is CVE-2017-15278?

CVE-2017-15278 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2017-15278?

CVE-2017-15278 affects the following packages: nilsteampassnet/teampass (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2017-15278?

Update nilsteampassnet/teampass to 2.1.27.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-15278 is resolved across your whole dependency graph.

How do I detect CVE-2017-15278 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nilsteampassnet/teampass, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2017-15278 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2017-15278 actively exploited in the wild?

No public exploit code has been indexed for CVE-2017-15278 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2017-15278?

CVE-2017-15278 has an EPSS (Exploit Prediction Scoring System) score of 0.9%, placing it in the 61th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2017-15278?

CVE-2017-15278 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2017-15278 published, and has it been updated?

CVE-2017-15278 was published on October 12, 2017 and was last updated on October 20, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘

🐘 Packagist

Not in CISA KEV

MEDIUM severity

CVE-2017-15278 — teampass

MEDIUMFix: nilsteampassnet/TeamPass@f5a7653

CVE-2017-15278 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in nilsteampassnet/teampass. A fix is available for nilsteampassnet/teampass — see the affected versions and patch details below.

TeamPass Cross-Site Scripting (XSS)

Also known asGHSA-28pv-2j2h-fmhc

Published

Oct 12, 2017

Updated

Oct 20, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs61th percentile — riskier than 61% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

🐘nilsteampassnet/teampass

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Cross-Site Scripting (XSS) was discovered in TeamPass before 2.1.27.9. The vulnerability exists due to insufficient filtration of data (in /sources/folders.queries.php). An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`nilsteampassnet/teampass`	all versions	2.1.27.9`composer require nilsteampassnet/teampass:^2.1.27.9`

Affected Products

1 product · 1 configurations

Application

teampassteampass

≤ 2.1.27.8

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nilsteampassnet/teampass, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nilsteampassnet/teampass to 2.1.27.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-15278 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2017-15278 in your dependencies?

Find it across Packagist, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

5.4/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

OpenSSF Scorecard

Package health score

TeamPass

6.3/10

Code-Review1/10

Maintained10/10

Branch-ProtectionN/A

Assessed Oct 19, 2026

Timeline

Disclosed

Oct 12, 2017

Last updated

Oct 20, 2026

Identifiers

CVE-2017-15278

GHSA-28pv-2j2h-fmhc

References

Advisorygithub.com · changelog.md Advisorygithub.com · 2.1.27.9 Advisorynvd.nist.gov · CVE 2017 15278 Fixgithub.com · f5a765381f051fe624386866ddb1f6b5e7eb929b Packagegithub.com · TeamPass

Related vulnerabilities

This CVE is medium severity; 8 of 8 other CVEs affecting nilsteampassnet/teampass are rated as high or higher (top: critical).

CVE-2024-50701CVE-2024-50702CVE-2024-50703CVE-2023-3565CVE-2023-3552CVE-2023-3553CVE-2023-3551CVE-2023-3531

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 20, 2026