CVE-2023-34439: Pleasanter 1.3.47.0 and earlier contains a stored cross-site scripting vulnerability

Q: How do I fix CVE-2023-34439?

pleasanter: upgrade to 1.3.48.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-34439 being exploited?

CVE-2023-34439 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-2023-34439 affect?

CVE-2023-34439 affects pleasanter. Severity is medium (CVSS 5.4). Pleasanter 1.3.47.0 and earlier contains a stored cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed on the user's web browser.

Q: How urgent is CVE-2023-34439?

Priority 27/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2023-34439 is a medium-severity flaw (CVSS 5.4) affecting pleasanter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Pleasanter 1.3.47.0 and earlier contains a stored cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed on the user's web 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	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-12-06
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: pleasanter

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

Am I affected?

Timeline

2023-12-06 09:15 UTCPublished CVE record published
2026-06-17 06:03 UTCUpdated Record last modified

pleasanter pleasanter UPGRADE

Affected: < 1.3.48.0

Fixed in: 1.3.48.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.3.48.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pleasanter

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-2023-34439?

pleasanter: upgrade to 1.3.48.0. Exact commands for each OS are on this page.

Is CVE-2023-34439 being exploited?

CVE-2023-34439 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-2023-34439 affect?

CVE-2023-34439 affects pleasanter. Severity is medium (CVSS 5.4). Pleasanter 1.3.47.0 and earlier contains a stored cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed on the user's web browser.

How urgent is CVE-2023-34439?

Priority 27/100. No elevated risk signals yet.

Related CVEs

CVE-2024-21584 MEDIUM 6.1 UPGRADE Pleasanter 1.3.49.0 and earlier contains a cross-site scripting vulnerability
CVE-2023-46688 MEDIUM 6.1 UPGRADE Open redirect vulnerability in Pleasanter 1.3.47.0 and earlier allows a remote unauthenticated attacker to red
CVE-2023-45210 MEDIUM 4.3 UPGRADE Pleasanter 1.3.47.0 and earlier contains an improper access control vulnerability, which may allow a remote au
CVE-2023-30758 MEDIUM 5.4 UPGRADE Cross-site scripting vulnerability in Pleasanter 1.3.38.1 and earlier allows a remote authenticated attacker t

References

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