9.8

CVE-2017-8898: invisioncommunity invision_power_board Cross-site Scripting

CVSS: 9.8v3.0CriticalModified
Published 11-05-2017Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2017-8898 is a critical (CVSS 9.8) Cross-site Scripting vulnerability in invisioncommunity invision_power_board. EPSS estimates a 1.89% chance of exploitation in the next 30 days, higher than 79.3% of scored vulnerabilities. 3 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
1.89%
0%100%
Low · +0.22 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits3reference

Timeline

  1. 11-05-2017
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Invision Power Services (IPS) Community Suite 4.1.19.2 and earlier has stored XSS in the Announcements, allowing privilege escalation from an Invision Power Board moderator to an admin. An attack uses the announce_content parameter in an index.php?/modcp/announcements/&action=create request. This is related to the "<> Source" option.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.89%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

+0.22 pp

From 1.67% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.89%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (zeroday.insecurity.zone)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (twitter.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (twitter.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Invisioncommunity1 product

1 vendor · 1 product

References

3 links