CVE-2020-28149: myDBR 5.8.3/4262 is affected by: Cross Site Scripting (XSS)

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CRITICAL 9.6MITIGATE

CVE-2020-28149 is a critical-severity flaw (CVSS 9.6) affecting mydbr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

myDBR 5.8.3/4262 is affected by: Cross Site Scripting (XSS). The impact is: execute arbitrary code (remote). The component is: CSRF Token. The attack vector is: CSRF token injection to XSS.

Why this priority

Critical severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.6 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mydbr

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

Am I affected?

Timeline

2021-03-15 18:15 UTCPublished CVE record published
2026-06-17 03:10 UTCUpdated Record last modified

mydbr mydbr MITIGATE

Affected: 5.8.3\/4262

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2020-28149?

mydbr: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-28149 being exploited?

CVE-2020-28149 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-2020-28149 affect?

CVE-2020-28149 affects mydbr. Severity is critical (CVSS 9.6). myDBR 5.8.3/4262 is affected by: Cross Site Scripting (XSS). The impact is: execute arbitrary code (remote). The component is: CSRF Token. The attack vector is: CSRF token injection to XSS.

How urgent is CVE-2020-28149?

Priority 58/100. Critical severity; Public exploit reference

References

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