How severe is CVE-2014-3840?

No CVSS score has been assigned to CVE-2014-3840 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2014-3840?

CVE-2014-3840 affects the following packages: mayan-edms (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2014-3840?

The records we use list no patched version of mayan-edms for CVE-2014-3840. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect CVE-2014-3840 in my PyPI dependencies?

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

How do I mitigate CVE-2014-3840 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-2014-3840 actively exploited in the wild?

Yes. There are 3 known exploit references for CVE-2014-3840, including 1 documented proof-of-concept exploit on Exploit-DB and 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2014-3840?

CVE-2014-3840 has an EPSS (Exploit Prediction Scoring System) score of 3.5%, placing it in the 89th 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-2014-3840?

CVE-2014-3840 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-2014-3840 published, and has it been updated?

CVE-2014-3840 was published on May 17, 2022 and was last updated on September 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

CVE-2014-3840 — mayan-edms

Fix: mayan-edms/mayan-edms@398c480

CVE-2014-3840 is a Cross-site Scripting (XSS) vulnerability in mayan-edms. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Mayan EDMS multiple cross-site scripting (XSS) vulnerabilities

Published

May 17, 2022

Updated

Sep 10, 2026

Affected

1 pkg

Patched

See advisory

Exploits

3 known

Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

3.5%probability of exploitation in next 30 days

Lower Risk-0.01%

Lower risk than most CVEs89th percentile — riskier than 89% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

🐍mayan-edms

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

Description

Multiple cross-site scripting (XSS) vulnerabilities in apps/common/templates/calculate_form_title.html in Mayan EDMS 0.13 allow remote authenticated users to inject arbitrary web script or HTML via a (1) tag or the (2) title of a source in a Staging folder, (3) Name field in a bootstrap setup, or Title field in a (4) smart link or (5) web form.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`mayan-edms`	all versions	No fix

Affected Products

1 product · 1 configurations

Application

mayan edmsmayan-edms

1 version

0.13

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-33493webappsmultiple✓ Verified

Mayan-EDms Web-Based Document Management OS System - Multiple Persistent Cross-Site Scripting Vulnerabilities

by Dolev Farhi · May 24, 2014

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mayan-edms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of mayan-edms for CVE-2014-3840. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
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

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