CVE-2013-3300 — lift-webkit
Fix: lift/framework@099d9c8CVE-2013-3300 is a Buffer Overflow vulnerability in net.liftweb:lift-webkit. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for net.liftweb:lift-webkit — see the affected versions and patch details below.
Lift Sensitive Information Disclosure
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
Real-World Exposure
net.liftweb:lift-webkit☕net.liftweb:lift-webkit_2.7.7☕net.liftweb:lift-webkit_2.8.0☕net.liftweb:lift-webkit_2.8.1☕net.liftweb:lift-webkit_2.8.2☕net.liftweb:lift-webkit_2.9.0☕net.liftweb:lift-webkit_2.9.0-1☕net.liftweb:lift-webkit_2.9.1Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
The JsonParser class in json/JsonParser.scala in Lift before 2.5 interprets a certain end-index value as a length value, which allows remote authenticated users to obtain sensitive information from other users' sessions via invalid input data containing a < (less than) character.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | net.liftweb:lift-webkit | all versions | No fix |
| ☕Maven | net.liftweb:lift-webkit_2.7.7 | all versions | No fix |
| ☕Maven | net.liftweb:lift-webkit_2.8.0 | all versions | No fix |
| ☕Maven | net.liftweb:lift-webkit_2.8.1 | all versions | No fix |
| ☕Maven | net.liftweb:lift-webkit_2.8.2 | all versions | No fix |
| ☕Maven | net.liftweb:lift-webkit_2.9.0 | all versions | No fix |
Affected Products
liftliftwebResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for net.liftweb:lift-webkit, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
A fix is available for CVE-2013-3300; check the affected-versions list above or the advisory for the patched release of net.liftweb:lift-webkit, then make sure no transitive dependency still pins the vulnerable range.
Workarounds
Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.
Frequently Asked Questions
Is CVE-2013-3300 in your dependencies?
Find it across Maven, including transitive dependencies.