CVE-2018-20858 json
Cross-site scripting in recommender-xblock
published 7y ago modified 4mo ago also GHSA-3j5x-7ccf-ppgm , PYSEC-2019-219 , EUVD-2019-0120
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
Recommender before 2018-07-18 allows XSS.
Patch / fix
Is CVE-2018-20858 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | recommender-xblock | <1.3.1 |
1.3.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/edx/RecommenderXBlock/pull/2
web, patch, third-party-advisory
- groups.google.com /forum/#%21topic/openedx-announce/SF8Sn6MuUTg
-
nvd.nist.gov
/vuln/detail/CVE-2018-20858
advisory
-
github.com
/advisories/GHSA-3j5x-7ccf-ppgm
advisory
-
github.com
/openedx/RecommenderXBlock
package
-
github.com
/pypa/advisory-database/tree/main/vulns/recommender-xblock/PYSEC-2019-219.yaml
web
-
groups.google.com
/forum/#!topic/openedx-announce/SF8Sn6MuUTg
web
Sources
- CVE List CVE-2018-20858
- GitHub Advisory GHSA-3j5x-7ccf-ppgm
- NVD CVE-2018-20858
- OSV PYSEC-2019-219
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.