CVE-2025-13873: Stored Cross-Site Scripting (XSS) in the survey-import feature of ObjectPlanet Opinio 7.26 rev12562 on web app

Routine

MEDIUM 5.4DOWNGRADE

CVE-2025-13873 is a medium-severity flaw (CVSS 5.4) affecting opinio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stored Cross-Site Scripting (XSS) in the survey-import feature of ObjectPlanet Opinio 7.26 rev12562 on web application allows an attacker to inject arbitrary JavaScript code, which executes in the browsing context of any visitor accessing the compromised survey.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-12-02
Last modified	2026-09-03

Publisher (CNA): TCS-CERT · Vendor: objectplanet

Last updated 2026-09-03 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-02 10:16 UTCPublished CVE record published
2026-09-03 03:15 UTCUpdated Record last modified

objectplanet opinio DOWNGRADE

Affected: 7.26

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.26

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.26 (Debian / Ubuntu)

apt-cache madison opinio sudo apt install opinio=<VERSION_BEFORE_7.26> sudo apt-mark hold opinio

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list opinio sudo dnf downgrade opinio-<VERSION_BEFORE_7.26> sudo dnf versionlock add opinio

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-13873?

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

Is CVE-2025-13873 being exploited?

CVE-2025-13873 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-2025-13873 affect?

CVE-2025-13873 affects opinio. Severity is medium (CVSS 5.4). Stored Cross-Site Scripting (XSS) in the survey-import feature of ObjectPlanet Opinio 7.26 rev12562 on web application allows an attacker to inject arbitrary JavaScript code, which executes in the browsing context of any visitor accessing t

How urgent is CVE-2025-13873?

Priority 21/100. No elevated risk signals yet.

Related CVEs

CVE-2025-13872 CRITICAL 9.1 DOWNGRADE Blind Server-Side Request Forgery (SSRF) in the survey-import feature of ObjectPlanet Opinio 7.26 rev12562
CVE-2025-13871 HIGH 8.8 DOWNGRADE Cross-Site Request Forgery (CSRF) in the resource-management feature of ObjectPlanet Opinio 7.26 rev12562

References

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