CVE-2021-39491: A Cross Site Scripting (XSS) vulnerability exists in Yogesh Ojha reNgine v1.0 via the Scan Engine name file in

Q: How do I fix CVE-2021-39491?

rengine: upgrade to 1.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2021-39491 being exploited?

CVE-2021-39491 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-39491 affect?

CVE-2021-39491 affects rengine. Severity is medium (CVSS 5.4). A Cross Site Scripting (XSS) vulnerability exists in Yogesh Ojha reNgine v1.0 via the Scan Engine name file in the Scan Engine deletion confirmation modal box . .

Q: How urgent is CVE-2021-39491?

Priority 34/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2021-39491 is a medium-severity flaw (CVSS 5.4) affecting rengine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Cross Site Scripting (XSS) vulnerability exists in Yogesh Ojha reNgine v1.0 via the Scan Engine name file in the Scan Engine deletion confirmation modal box . .

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-03-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rengine project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-03-24 15:15 UTCPublished CVE record published
2026-06-17 04:03 UTCUpdated Record last modified

rengine project rengine UPGRADE

Affected: < 1.0.1

Fixed in: 1.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rengine || rpm -q rengine || rengine --version

2. UPGRADE to 1.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rengine

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rengine

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-39491?

rengine: upgrade to 1.0.1. Exact commands for each OS are on this page.

Is CVE-2021-39491 being exploited?

CVE-2021-39491 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-39491 affect?

CVE-2021-39491 affects rengine. Severity is medium (CVSS 5.4). A Cross Site Scripting (XSS) vulnerability exists in Yogesh Ojha reNgine v1.0 via the Scan Engine name file in the Scan Engine deletion confirmation modal box . .

How urgent is CVE-2021-39491?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2024-58287 HIGH 8.8 DOWNGRADE reNgine 2.2.0 contains a command injection vulnerability in the nmap_cmd parameter of scan engine configuratio
CVE-2025-61319 MEDIUM 6.1 UPGRADE ReNgine thru 2.2.0 is vulnerable to a Stored Cross-Site Scripting (XSS) vulnerability in the Vulnerabilities m
CVE-2025-24962 HIGH 8.8 DOWNGRADE reNgine is an automated reconnaissance framework for web applications
CVE-2025-24899 HIGH 7.5 UPGRADE reNgine is an automated reconnaissance framework for web applications
CVE-2024-43381 MEDIUM 5.0 UPGRADE reNgine is an automated reconnaissance framework for web applications

References

← Back to latest CVEs