CVE-2025-63710: The send_message.php endpoint in SourceCodester Simple Public Chat Room 1.0 is vulnerable to Cross-Site Reques

This week

MEDIUM 6.5REMOTEDOWNGRADE

CVE-2025-63710 is a medium-severity flaw (CVSS 6.5) affecting simple public chat room. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The send_message.php endpoint in SourceCodester Simple Public Chat Room 1.0 is vulnerable to Cross-Site Request Forgery (CSRF). The application does not implement any CSRF-protection mechanisms such as tokens, nonces, or same-site cookie restrictions. An attacker can create a malicious HTML page that, when visited by an authenticated user, will automatically submit a forged POST request to the vulnerable endpoint. This request will be executed wi

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-352
Published	2025-11-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pijey

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

Am I affected?

Timeline

2025-11-10 15:15 UTCPublished CVE record published
2026-06-17 09:53 UTCUpdated Record last modified

pijey simple public chat room DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy simple-public-chat-room || rpm -q simple-public-chat-room || simple-public-chat-room --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison simple-public-chat-room sudo apt install simple-public-chat-room=<VERSION_BEFORE_1.0> sudo apt-mark hold simple-public-chat-room

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

dnf --showduplicates list simple-public-chat-room sudo dnf downgrade simple-public-chat-room-<VERSION_BEFORE_1.0> sudo dnf versionlock add simple-public-chat-room

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-2025-63710?

simple public chat room: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-63710 being exploited?

CVE-2025-63710 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-2025-63710 affect?

CVE-2025-63710 affects simple public chat room. Severity is medium (CVSS 6.5). The send_message.php endpoint in SourceCodester Simple Public Chat Room 1.0 is vulnerable to Cross-Site Request Forgery (CSRF). The application does not implement any CSRF-protection mechanisms such as tokens, nonces, or same-site cookie re

How urgent is CVE-2025-63710?

Priority 34/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

← Back to latest CVEs