CVE-2025-64744Public exploitNetwork attack vector

Invitation-email HTML injection via unescaped organization names

Published Nov 13, 2025 · Updated Nov 13, 2025

HTML injection in OpenObserve 0.16.1 and earlier allows remote authenticated users to alter invitation emails via crafted organization names. The invitation-email template inserts the organization name into the message subject and body without HTML sanitization or escaping. An account able to manage an organization and invite a recipient can render deceptive markup or links; script execution was not established.

CVSS severity3.5
Low
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

HTML injection in OpenObserve 0.16.1 and earlier allows remote authenticated users to alter invitation emails via crafted organization names. The invitation-email template inserts the organization name into the message subject and body without HTML sanitization or escaping. An account able to manage an organization and invite a recipient can render deceptive markup or links; script execution was not established.

The record

CVE
CVE-2025-64744
Published
Nov 13, 2025
Updated
Nov 13, 2025
Vendor
OpenObserve
Product
OpenObserve
Classifications
CWE-79, T1566.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 0.16.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenObserve · OpenObserveversion=<= 0.16.1

Published CVSS scores

3.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1566.002Spearphishing Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo