RCE in Nyuccl Psiturk
CVE-2021-4315
A vulnerability has been found in NYUCCL psiTurk up to 3.2.0 and classified as critical. This vulnerability affects unknown code of the file psiturk/experiment.py. The manipulation of the argument mode leads to improper neutralization of special elements used in a template engine. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.1 is able to address this issue. The name of the patch is 47787e15cecd66f2aa87687bf852ae0194a4335f. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-219676.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.009 (58.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Nyuccl Psiturk — versions 3.0, 3.1, 3.2
- Psiturk
Weakness classification (CWE)
References
- vuldb.com/ (Permissions Required, technical-description, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required)
- github.com/NYUCCL/psiTurk/pull/517 (issue-tracking, exploit, Issue Tracking)
- github.com/NYUCCL/psiTurk/commit/47787e15cecd66f2aa87687bf852ae0194a4335f (Patch, patch)
- github.com/NYUCCL/psiTurk/releases/tag/v3.2.1 (Release Notes, patch)
Frequently asked questions
- What is CVE-2021-4315?
- CVE-2021-4315 is a medium-severity vulnerability in Nyuccl Psiturk, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 5.5/10. Published 2023-01-28.
- How severe is CVE-2021-4315?
- Medium severity. CVSS v3 base score is 5.5 out of 10.