How severe is CVE-2025-49583?

No CVSS score has been assigned to CVE-2025-49583 yet. Review the advisory details and affected package list to assess your exposure.

How do I fix CVE-2025-49583?

Update org.xwiki.platform:xwiki-platform-notifications-notifiers-default to 15.10.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-49583 is resolved across your whole dependency graph.

How do I mitigate CVE-2025-49583 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against CVE-2025-49583?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-49583 can be triaged on real exposure rather than presence alone.

Is CVE-2025-49583 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-49583 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2025-49583?

CVE-2025-49583 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 20th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2025-49583?

CVE-2025-49583 is classified as CWE-270 (CWE-270), CWE-357 (CWE-357). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2025-49583 published, and has it been updated?

CVE-2025-49583 was published on June 13, 2025 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

CVE-2025-49583 — xwiki-platform-notificati…

Fix: xwiki/xwiki-platform@3d96bf3

CVE-2025-49583 is a CWE-270 vulnerability in org.xwiki.platform:xwiki-platform-notifications-notifiers-default. A fix is available for org.xwiki.platform:xwiki-platform-notifications-notifiers-default — see the affected versions and patch details below.

XWiki provides no warning when granting XWiki.Notifications.Code.NotificationEmailRendererClass admin right

Also known asGHSA-ff6v-w58f-v97w

Published

Jun 13, 2025

Updated

Aug 12, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

None indexed

Exploitation data as of Sep 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-49583.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs20th percentile — riskier than 20% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

3 pkgs affected

☕org.xwiki.platform:xwiki-platform-notifications-notifiers-default☕org.xwiki.platform:xwiki-platform-notifications-notifiers-default☕org.xwiki.platform:xwiki-platform-notifications-notifiers-default

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

XWiki is a generic wiki platform. When a user without script right creates a document with an XWiki.Notifications.Code.NotificationEmailRendererClass object, and later an admin edits and saves that document, the email templates in this object will be used for notifications. No malicious code can be executed, though, as while these templates allow Velocity code, the existing generic analyzer already warns admins before editing Velocity code. The main impact would thus be to send spam, e.g., with phishing links to other users or to hide notifications about other attacks. Note that warnings before editing documents with dangerous properties have only been introduced in XWiki 15.9, before that version, this was a known issue and the advice was simply to be careful. This has been patched in XWiki 16.10.2, 16.4.7 and 15.10.16 by adding an analysis for the respective XClass properties.

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.xwiki.platform:xwiki-platform-notifications-notifiers-default`	all versions	15.10.16`org.xwiki.platform:xwiki-platform-notifications-notifiers-default:15.10.16`
☕Maven	`org.xwiki.platform:xwiki-platform-notifications-notifiers-default`	≥ 16.0.0-rc-1&&< 16.4.7	16.4.7`org.xwiki.platform:xwiki-platform-notifications-notifiers-default:16.4.7`
☕Maven	`org.xwiki.platform:xwiki-platform-notifications-notifiers-default`	≥ 16.5.0-rc-1&&< 16.10.2	16.10.2`org.xwiki.platform:xwiki-platform-notifications-notifiers-default:16.10.2`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-notifications-notifiers-default, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-notifications-notifiers-default to 15.10.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-49583 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-49583 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2025-49583. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

XWiki is a generic wiki platform. When a user without script right creates a document with an `XWiki.Notifications.Code.NotificationEmailRendererClass` object, and later an admin edits and saves that document, the email templates in this object will be used for notifications. No malicious code can be executed, though, as while these templates allow Velocity code, the existing generic analyzer already warns admins before editing Velocity code. The main impact would thus be to send spam, e.g., with phishing links to other users or to hide notifications about other attacks. Note that warnings bef

O3 Security · Impact-Aware SCA

Is CVE-2025-49583 in your dependencies?

O3 Security finds CVE-2025-49583 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works