CVE-2020-9520: A stored XSS vulnerability was discovered in Micro Focus Vibe, affecting all Vibe version prior to 4.0.7

Q: How do I fix CVE-2020-9520?

vibe: upgrade to 4.0.7. Exact commands for each OS are on this page.

Q: Is CVE-2020-9520 being exploited?

CVE-2020-9520 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-2020-9520 affect?

CVE-2020-9520 affects vibe. Severity is medium (CVSS 5.4). A stored XSS vulnerability was discovered in Micro Focus Vibe, affecting all Vibe version prior to 4.0.7. The vulnerability could allows a remote attacker to craft and store malicious content into Vibe such that when the content is viewed b

Q: How urgent is CVE-2020-9520?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2020-9520 is a medium-severity flaw (CVSS 5.4) affecting vibe. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A stored XSS vulnerability was discovered in Micro Focus Vibe, affecting all Vibe version prior to 4.0.7. The vulnerability could allows a remote attacker to craft and store malicious content into Vibe such that when the content is viewed by another user of the system, attacker controlled JavaScript will execute in the security context of the target user’s browser.

Why this priority

No elevated risk signals yet

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	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-03-25
Last modified	2026-06-17

Publisher (CNA): OpenText · Vendor: microfocus

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

Am I affected?

Timeline

2020-03-25 21:15 UTCPublished CVE record published
2026-06-17 03:28 UTCUpdated Record last modified

microfocus vibe UPGRADE

Affected: < 4.0.7

Fixed in: 4.0.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 4.0.7 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vibe

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-2020-9520?

vibe: upgrade to 4.0.7. Exact commands for each OS are on this page.

Is CVE-2020-9520 being exploited?

CVE-2020-9520 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-2020-9520 affect?

CVE-2020-9520 affects vibe. Severity is medium (CVSS 5.4). A stored XSS vulnerability was discovered in Micro Focus Vibe, affecting all Vibe version prior to 4.0.7. The vulnerability could allows a remote attacker to craft and store malicious content into Vibe such that when the content is viewed b

How urgent is CVE-2020-9520?

Priority 33/100. No elevated risk signals yet.

Related CVEs

CVE-2017-7433 MEDIUM 6.5 UPGRADE An absolute path traversal vulnerability (CWE-36) in Micro Focus Vibe 4.0.2 and earlier allows a remote authen

References

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