What is CVE-2020-35753?

CVE-2020-35753 is a medium-severity vulnerability in Linux Kernel, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-01-26.

How severe is CVE-2020-35753?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2020-35753 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Linux Kernel

CVE-2020-35753

The job posting recommendation form in Persis Human Resource Management Portal (Versions 17.2.00 through 17.2.35 and 19.0.00 through 19.0.20), when the "Recommend job posting" function is enabled, allows XSS via the SENDER parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-01-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.3th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.3% 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

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-35753

References

it-sec.de/ger/Aktuelles-Termine/it.sec-blog/it.sec-Research-Team-findet-unbekan… (Exploit, Third Party Advisory)
slashcrypto.org/2021/02/20/CVE-2020-35753/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-35753?: CVE-2020-35753 is a medium-severity vulnerability in Linux Kernel, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-01-26.
How severe is CVE-2020-35753?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-35753 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.