An issue was discovered in cPanel before 11.109.9999.116. XSS can occur on the cpsrvd error page via an invalid webcall ID, aka SEC-669. The fixed versions are 11.109.9999.116, 11.108.0.13, 11.106.0.18, and 11.102.0.31.
CVE-2023-29489
Score elevated to 7.7 because EPSS predicts 66% probability of exploitation within the next 30 days (top 0.8% of all CVEs). NVD baseline CVSS 5.3 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 66%
- Public exploit code is available (ssvc poc, epss top5pct, epss high, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 7.7(high)
- EG Risk
- 61(Track*)EG Risk 61/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity77% × 45%Exploitation66% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 66%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
April 27, 2023
Last Modified
November 21, 2024
References (4)
- cve@mitrehttps://blog.assetnote.io/2023/04/26/xss-million-websites-cpanel/
- cve@mitrehttps://forums.cpanel.net/threads/cpanel-tsr-2023-0001-full-disclosure.708949/
- af854a3a-2127-422b-91ae-364da2661108https://blog.assetnote.io/2023/04/26/xss-million-websites-cpanel/
- af854a3a-2127-422b-91ae-364da2661108https://forums.cpanel.net/threads/cpanel-tsr-2023-0001-full-disclosure.708949/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 19× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-07 15:59 UTCEPSS rescore
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- 2026-07-30 16:26 UTCEPSS rescore
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- 2026-07-23 02:21 UTCEG score recompute▲ 2.40
- 2026-07-22 23:09 UTCEG score recompute▼ 3.70
- 2026-07-22 14:06 UTCEPSS rescore
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- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-25 02:14 UTCEG score recompute
- 2026-05-25 02:14 UTCGHSA enrichment
Publicly available exploits
(8 references)Working exploit code is in the public domain (7 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Open source ↗GitHub PoCThuankobtcode/CVE-2023-29489First seen Jun 5, 2025
- GitHub PoCmdaseem03/cpanel_xss_2023First seen Jan 23, 2024
cpanel_xss_2023 is a simple Python script designed for finding CVE-2023-29489 vulnerability in cpanel.
Open source ↗ - Open source ↗GitHub PoCMakurorororororororo/Validate-CVE-2023-29489-scanner-First seen Dec 23, 2023
- GitHub PoC0-d3y/CVE-2023-29489First seen May 17, 2023
Mass Scaning vulnerability in Cpanel [XSS]
Open source ↗ - GitHub PoCwhalebone7/EagleEyeFirst seen May 1, 2023
To filter the actual vulnerable URLs from the screenshots, you can use the ee.sh script. Simply run ./ee.sh -f "path/to/index_screenshot.txt" -k "hacked" and the script will filter the URLs that contain the reflective XSS payload (For Example: cPanel CVE-2023-29489 ) in their screenshots.
Open source ↗ - GitHub PoCipk1/CVE-2023-29489.pyFirst seen Apr 28, 2023
a pyhton script to test all results from shodan for cPanel CVE-2023-29489, credits to @assetnote, I just automate
Open source ↗ - Open source ↗GitHub PoCxKore123/cPanel-CVE-2023-29489First seen Apr 27, 2023
- Nucleihttp/cves/2023/CVE-2023-29489.yamlFirst seen Jan 1, 2023
cPanel < 11.109.9999.116 - Cross-Site Scripting
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2023-29489?
When was CVE-2023-29489 disclosed?
Is CVE-2023-29489 actively exploited?
What is the CVSS score of CVE-2023-29489?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-29489
Is Your Infrastructure Affected by CVE-2023-29489?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.